Hi Jon,

A stack trace is not automatically generated with the error, but I ran it in my debugger and got one.

"http-bio-8080-exec-6@10437" daemon prio=5 tid=0x3d nid=NA runnable
  java.lang.Thread.State: RUNNABLE
      at org.labkey.api.data.DataRegion.renderDetails(DataRegion.java:1729)
      at org.labkey.api.data.DataRegion.render(DataRegion.java:2366)
      at org.labkey.api.view.DetailsView._renderDataRegion(DetailsView.java:66)
      at org.labkey.api.view.DataView.renderView(DataView.java:189)
      at org.labkey.api.view.DataView.renderView(DataView.java:54)
      at org.labkey.api.view.WebPartView.renderView(WebPartView.java:459)
      at org.labkey.api.view.WebPartView.renderInternal(WebPartView.java:354)
      at org.labkey.api.view.HttpView.render(HttpView.java:137)
      at org.labkey.api.view.HttpView.render(HttpView.java:122)
      at org.labkey.api.view.HttpView.include(HttpView.java:515)
      at org.labkey.api.view.HttpView.include(HttpView.java:492)
      at org.labkey.api.view.HttpView.include(HttpView.java:480)
      at org.labkey.api.view.VBox.renderView(VBox.java:79)
      at org.labkey.api.view.WebPartView.renderInternal(WebPartView.java:354)
      at org.labkey.api.view.HttpView.render(HttpView.java:137)
      at org.labkey.api.view.HttpView.render(HttpView.java:122)
      at org.labkey.api.view.HttpView.include(HttpView.java:515)
      at org.labkey.api.view.HttpView.include(HttpView.java:492)
      at org.labkey.jsp.compiled.org.labkey.api.view.template.HomeTemplate_jsp._jspService(HomeTemplate_jsp.java:204)
      at org.labkey.api.view.JspView.renderView(JspView.java:168)
      at org.labkey.api.view.WebPartView.renderInternal(WebPartView.java:354)
      at org.labkey.api.view.HttpView.render(HttpView.java:137)
      at org.labkey.api.view.HttpView.render(HttpView.java:122)
      at org.labkey.api.action.SpringActionController.renderInTemplate(SpringActionController.java:524)
      at org.labkey.api.action.SpringActionController.handleRequest(SpringActionController.java:419)
      at org.labkey.api.module.DefaultModule.dispatch(DefaultModule.java:1218)
      at org.labkey.api.view.ViewServlet._service(ViewServlet.java:190)
      at org.labkey.api.view.ViewServlet.service(ViewServlet.java:124)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
      at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
      at org.labkey.api.data.TransactionFilter.doFilter(TransactionFilter.java:38)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
      at org.labkey.core.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:118)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
      at org.labkey.api.module.ModuleLoader.doFilter(ModuleLoader.java:1137)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
      at org.labkey.api.security.AuthFilter.doFilter(AuthFilter.java:159)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
      at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
      at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
      at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
      at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
      at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
      at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
      at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
      at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
      at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
      at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
      at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:315)
      - locked <0x3105> (a org.apache.tomcat.util.net.SocketWrapper)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      at java.lang.Thread.run(Thread.java:745)

This is with revision: 41716

Thanks,
-Will