Tim have you seen anything that would cause this ?

​<error-report>
<version>1.9-SNAPSHOT</version>
<revision>Archetype_Changes 6458925</revision>
<message>The Query returns results of type class org.openvpms.component.business.domain.im.common.IMObject, but the expected type is class org.openvpms.component.business.domain.im.act.Act</message>
<exception>
<type>org.openvpms.web.component.im.query.QueryException</type>
<message>The Query returns results of type class org.openvpms.component.business.domain.im.common.IMObject, but the expected type is class org.openvpms.component.business.domain.im.act.Act</message>
<stackTrace>
<trace>org.openvpms.web.component.im.query.AbstractQuery.&lt;init&gt;(AbstractQuery.java:129)</trace>
<trace>org.openvpms.web.component.im.query.AbstractArchetypeQuery.&lt;init&gt;(AbstractArchetypeQuery.java:155)</trace>
<trace>org.openvpms.web.component.im.query.ActQuery.&lt;init&gt;(ActQuery.java:134)</trace>
<trace>org.openvpms.web.component.im.query.DateRangeActQuery.&lt;init&gt;(DateRangeActQuery.java:118)</trace>
<trace>org.openvpms.web.component.im.query.DateRangeActQuery.&lt;init&gt;(DateRangeActQuery.java:86)</trace>
<trace>org.openvpms.web.workspace.patient.communication.PatientCommunicationQuery.&lt;init&gt;(PatientCommunicationQuery.java:45)</trace>
<trace>org.openvpms.web.workspace.patient.mr.RecordBrowser.createCommunicationBrowser(RecordBrowser.java:444)</trace>
<trace>org.openvpms.web.workspace.patient.mr.RecordBrowser.&lt;init&gt;(RecordBrowser.java:190)</trace>
<trace>org.openvpms.web.workspace.patient.mr.PatientRecordWorkspace.createRecordBrowser(PatientRecordWorkspace.java:190)</trace>
<trace>org.openvpms.web.workspace.patient.mr.PatientRecordWorkspace.createBrowser(PatientRecordWorkspace.java:169)</trace>
<trace>org.openvpms.web.component.workspace.BrowserCRUDWorkspace.layoutWorkspace(BrowserCRUDWorkspace.java:354)</trace>
<trace>org.openvpms.web.component.workspace.BrowserCRUDWorkspace.setObject(BrowserCRUDWorkspace.java:161)</trace>
<trace>org.openvpms.web.workspace.patient.mr.PatientRecordWorkspace.setObject(PatientRecordWorkspace.java:80)</trace>
<trace>org.openvpms.web.workspace.patient.mr.PatientRecordWorkspace.setObject(PatientRecordWorkspace.java:52)</trace>
<trace>org.openvpms.web.component.workspace.AbstractWorkspace.setIMObject(AbstractWorkspace.java:191)</trace>
<trace>org.openvpms.web.component.workspace.AbstractWorkspace.update(AbstractWorkspace.java:205)</trace>
<trace>org.openvpms.web.workspace.MainPane.changeContext(MainPane.java:310)</trace>
<trace>org.openvpms.web.workspace.OpenVPMSApp.switchTo(OpenVPMSApp.java:274)</trace>
<trace>org.openvpms.web.component.app.DefaultContextSwitchListener.switchTo(DefaultContextSwitchListener.java:49)</trace>
<trace>org.openvpms.web.component.im.view.IMObjectReferenceViewer.onView(IMObjectReferenceViewer.java:230)</trace>
<trace>org.openvpms.web.component.im.view.IMObjectReferenceViewer$1.onAction(IMObjectReferenceViewer.java:131)</trace>
<trace>org.openvpms.web.echo.event.ActionListener.actionPerformed(ActionListener.java:40)</trace>
<trace>nextapp.echo2.app.button.AbstractButton.fireActionPerformed(AbstractButton.java:135)</trace>
<trace>echopointng.ButtonEx$1.actionPerformed(ButtonEx.java:120)</trace>
<trace>nextapp.echo2.app.button.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:70)</trace>
<trace>echopointng.model.DefaultButtonModelEx.doAction(DefaultButtonModelEx.java:51)</trace>
<trace>echopointng.ButtonEx.processInput(ButtonEx.java:202)</trace>
<trace>nextapp.echo2.app.update.ClientUpdateManager.process(ClientUpdateManager.java:116)</trace>
<trace>nextapp.echo2.app.update.UpdateManager.processClientUpdates(UpdateManager.java:89)</trace>
<trace>nextapp.echo2.webcontainer.ContainerSynchronizeService.renderUpdate(ContainerSynchronizeService.java:471)</trace>
<trace>nextapp.echo2.webrender.service.SynchronizeService.service(SynchronizeService.java:279)</trace>
<trace>nextapp.echo2.webrender.WebRenderServlet.process(WebRenderServlet.java:273)</trace>
<trace>org.openvpms.web.echo.servlet.SpringWebContainerServlet.process(SpringWebContainerServlet.java:178)</trace>
<trace>nextapp.echo2.webrender.WebRenderServlet.doPost(WebRenderServlet.java:189)</trace>
<trace>javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</trace>
<trace>javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</trace>
<trace>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</trace>
<trace>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</trace>
<trace>org.openvpms.web.echo.servlet.Log4JMDCUserFilter.doFilter(Log4JMDCUserFilter.java:58)</trace>
<trace>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</trace>
<trace>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</trace>
<trace>org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)</trace>
<trace>org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)</trace>
<trace>org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)</trace>
<trace>org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)</trace>
<trace>org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)</trace>
<trace>org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)</trace>
<trace>org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103)</trace>
<trace>org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)</trace>
<trace>org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)</trace>
<trace>org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)</trace>
<trace>org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:154)</trace>
<trace>org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)</trace>
<trace>org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)</trace>
<trace>org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)</trace>
<trace>org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:199)</trace>
<trace>org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)</trace>
<trace>org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:50)</trace>
<trace>org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106)</trace>
<trace>org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)</trace>
<trace>org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)</trace>
<trace>org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)</trace>
<trace>org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)</trace>
<trace>org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)</trace>
<trace>org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343)</trace>
<trace>org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260)</trace>
<trace>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</trace>
<trace>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</trace>
<trace>org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</trace>
<trace>org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</trace>
<trace>org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)</trace>
<trace>org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</trace>
<trace>com.googlecode.psiprobe.Tomcat70AgentValve.invoke(Tomcat70AgentValve.java:38)</trace>
<trace>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)</trace>
<trace>org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</trace>
<trace>org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</trace>
<trace>org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)</trace>
<trace>org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)</trace>
<trace>org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)</trace>
<trace>org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:315)</trace>
<trace>java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</trace>
<trace>java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</trace>
<trace>java.lang.Thread.run(Thread.java:745)</trace>
</stackTrace>
</exception>
<freeMemory>261782920</freeMemory>
<totalMemory>570646528</totalMemory>
<maxMemory>1056309248</maxMemory>
<properties>
<property name="java.runtime.name" value="OpenJDK Runtime Environment"/>
<property name="sun.boot.library.path" value="/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64"/>
<property name="java.vm.version" value="24.95-b01"/>
<property name="shared.loader" value="${catalina.home}/shared/classes,${catalina.home}/shared/*.jar"/>
<property name="java.vm.vendor" value="Oracle Corporation"/>
<property name="java.vendor.url" value="http://java.oracle.com/"/>
<property name="path.separator" value=":"/>
<property name="java.vm.name" value="OpenJDK 64-Bit Server VM"/>
<property name="tomcat.util.buf.StringCache.byte.enabled" value="true"/>
<property name="file.encoding.pkg" value="sun.io"/>
<property name="java.util.logging.config.file" value="/var/lib/tomcat7/conf/logging.properties"/>
<property name="user.country" value="AU"/>
<property name="sun.java.launcher" value="SUN_STANDARD"/>
<property name="sun.os.patch.level" value="unknown"/>
<property name="java.vm.specification.name" value="Java Virtual Machine Specification"/>
<property name="user.dir" value="/var/lib/tomcat7"/>
<property name="java.runtime.version" value="1.7.0_95-b00"/>
<property name="org.apache.catalina.startup.TldConfig.jarsToSkip" value="tomcat7-websocket.jar"/>
<property name="java.awt.graphicsenv" value="sun.awt.X11GraphicsEnvironment"/>
<property name="java.endorsed.dirs" value="/usr/share/tomcat7/endorsed"/>
<property name="os.arch" value="amd64"/>
<property name="java.io.tmpdir" value="/tmp/tomcat7-tomcat7-tmp"/>
<property name="line.separator" value="
"/>
<property name="java.vm.specification.vendor" value="Oracle Corporation"/>
<property name="java.util.logging.manager" value="org.apache.juli.ClassLoaderLogManager"/>
<property name="java.naming.factory.url.pkgs" value="org.apache.naming"/>
<property name="os.name" value="Linux"/>
<property name="sun.jnu.encoding" value="UTF-8"/>
<property name="org.apache.commons.jxpath.JXPathContextFactory" value="org.openvpms.component.system.common.jxpath.OpenVPMSContextFactoryReferenceImpl"/>
<property name="java.library.path" value="/usr/java/packages/lib/amd64:/usr/lib/x86_64-linux-gnu/jni:/lib/x86_64-linux-gnu:/usr/lib/x86_64-linux-gnu:/usr/lib/jni:/lib:/usr/lib"/>
<property name="tomcat.util.scan.DefaultJarScanner.jarsToSkip" value="bootstrap.jar,commons-daemon.jar,tomcat-juli.jar,annotations-api.jar,el-api.jar,jsp-api.jar,servlet-api.jar,websocket-api.jar,catalina.jar,catalina-ant.jar,catalina-ha.jar,catalina-tribes.jar,jasper.jar,jasper-el.jar,ecj-*.jar,tomcat-api.jar,tomcat-util.jar,tomcat-coyote.jar,tomcat-dbcp.jar,tomcat-jni.jar,tomcat-spdy.jar,tomcat-i18n-en.jar,tomcat-i18n-es.jar,tomcat-i18n-fr.jar,tomcat-i18n-ja.jar,tomcat-juli-adapters.jar,catalina-jmx-remote.jar,catalina-ws.jar,tomcat-jdbc.jar,tools.jar,commons-beanutils*.jar,commons-codec*.jar,commons-collections*.jar,commons-dbcp*.jar,commons-digester*.jar,commons-fileupload*.jar,commons-httpclient*.jar,commons-io*.jar,commons-lang*.jar,commons-logging*.jar,commons-math*.jar,commons-pool*.jar,jstl.jar,geronimo-spec-jaxrpc*.jar,wsdl4j*.jar,ant.jar,ant-junit*.jar,aspectj*.jar,jmx.jar,h2*.jar,hibernate*.jar,httpclient*.jar,jmx-tools.jar,jta*.jar,log4j.jar,log4j-1*.jar,mail*.jar,slf4j*.jar,xercesImpl.jar,xmlParserAPIs.jar,xml-apis.jar,junit.jar,junit-*.jar,hamcrest*.jar,org.hamcrest*.jar,ant-launcher.jar,cobertura-*.jar,asm-*.jar,dom4j-*.jar,icu4j-*.jar,jaxen-*.jar,jdom-*.jar,jetty-*.jar,oro-*.jar,servlet-api-*.jar,tagsoup-*.jar,xmlParserAPIs-*.jar,xom-*.jar"/>
<property name="java.specification.name" value="Java Platform API Specification"/>
<property name="java.class.version" value="51.0"/>
<property name="sun.management.compiler" value="HotSpot 64-Bit Tiered Compilers"/>
<property name="os.version" value="4.2.0-30-generic"/>
<property name="user.home" value="/usr/share/tomcat7"/>
<property name="org.apache.catalina.startup.ContextConfig.jarsToSkip" value=""/>
<property name="user.timezone" value="Australia/Brisbane"/>
<property name="catalina.useNaming" value="true"/>
<property name="java.awt.printerjob" value="sun.print.PSPrinterJob"/>
<property name="java.specification.version" value="1.7"/>
<property name="file.encoding" value="UTF-8"/>
<property name="catalina.home" value="/usr/share/tomcat7"/>
<property name="user.name" value="tomcat7"/>
<property name="java.class.path" value="/usr/share/tomcat7/bin/bootstrap.jar:/usr/share/tomcat7/bin/tomcat-juli.jar"/>
<property name="java.naming.factory.initial" value="org.apache.naming.java.javaURLContextFactory"/>
<property name="openvpms" value="/var/lib/tomcat7/webapps/openvpms/"/>
<property name="package.definition" value="sun.,java.,org.apache.catalina.,org.apache.coyote.,org.apache.tomcat.,org.apache.jasper."/>
<property name="java.vm.specification.version" value="1.7"/>
<property name="sun.arch.data.model" value="64"/>
<property name="java.home" value="/usr/lib/jvm/java-7-openjdk-amd64/jre"/>
<property name="sun.java.command" value="org.apache.catalina.startup.Bootstrap start"/>
<property name="java.specification.vendor" value="Oracle Corporation"/>
<property name="user.language" value="en"/>
<property name="awt.toolkit" value="sun.awt.X11.XToolkit"/>
<property name="java.vm.info" value="mixed mode"/>
<property name="java.version" value="1.7.0_95"/>
<property name="java.ext.dirs" value="/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/ext:/usr/java/packages/lib/ext"/>
<property name="sun.boot.class.path" value="/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/resources.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/rt.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/sunrsasign.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/jsse.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/jce.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/charsets.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/rhino.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/jfr.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/classes"/>
<property name="java.vendor" value="Oracle Corporation"/>
<property name="java.awt.headless" value="true"/>
<property name="server.loader" value="${catalina.home}/server/classes,${catalina.home}/server/*.jar"/>
<property name="catalina.base" value="/var/lib/tomcat7"/>
<property name="file.separator" value="/"/>
<property name="java.vendor.url.bug" value="http://bugreport.sun.com/bugreport/"/>
<property name="common.loader" value="${catalina.base}/lib,${catalina.base}/lib/*.jar,${catalina.home}/lib,${catalina.home}/lib/*.jar,${catalina.home}/common/classes,${catalina.home}/common/*.jar"/>
<property name="sun.cpu.endian" value="little"/>
<property name="sun.io.unicode.encoding" value="UnicodeLittle"/>
<property name="sun.font.fontmanager" value="sun.awt.X11FontManager"/>
<property name="package.access" value="sun.,org.apache.catalina.,org.apache.coyote.,org.apache.tomcat.,org.apache.jasper."/>
<property name="sun.cpu.isalist" value=""/>
</properties>
</error-report>