This is an example of the log entry when attempting to create a vm using a template that contains a disk.
2017-02-06 14:42:15,538 ERROR [org.ovirt.engine.ui.frontend.server.gwt.OvirtRemoteLoggingService] (default task-67) [] Permutation name: 587E534EAE351BE2F229E0B865EFB2D3
2017-02-06 14:42:15,539 ERROR [org.ovirt.engine.ui.frontend.server.gwt.OvirtRemoteLoggingService] (default task-67) [] Uncaught exception: com.google.gwt.core.client.JavaScriptException: (TypeError)
__gwt$exception: <skipped>: Cannot read property 'f' of undefined
at org.ovirt.engine.ui.uicommonweb.models.storage.DisksAllocationModel.$updateImageToDestinationDomainMap(DisksAllocationModel.java:307)
at org.ovirt.engine.ui.uicommonweb.models.storage.DisksAllocationModel.$getImageToDestinationDomainMap(DisksAllocationModel.java:133)
at org.ovirt.engine.ui.uicommonweb.models.userportal.UserPortalListModel.$postVmNameUniqueCheck(UserPortalListModel.java:975)
at org.ovirt.engine.ui.uicommonweb.models.userportal.UserPortalListModel$10.onSuccess(UserPortalListModel.java:921)
at org.ovirt.engine.ui.frontend.Frontend$2.$onSuccess(Frontend.java:238) [frontend.jar:]
at org.ovirt.engine.ui.frontend.Frontend$2.onSuccess(Frontend.java:238) [frontend.jar:]
at org.ovirt.engine.ui.frontend.communication.OperationProcessor$2.$onSuccess(OperationProcessor.java:139) [frontend.jar:]
at org.ovirt.engine.ui.frontend.communication.OperationProcessor$2.onSuccess(OperationProcessor.java:139) [frontend.jar:]
at org.ovirt.engine.ui.frontend.communication.GWTRPCCommunicationProvider$3$1.$onSuccess(GWTRPCCommunicationProvider.java:160) [frontend.jar:]
at org.ovirt.engine.ui.frontend.communication.GWTRPCCommunicationProvider$3$1.onSuccess(GWTRPCCommunicationProvider.java:160) [frontend.jar:]
at com.google.gwt.rpc.client.impl.RpcCallbackAdapter.onResponseReceived(RpcCallbackAdapter.java:72) [gwt-servlet.jar:]
at com.google.gwt.http.client.Request.$fireOnResponseReceived(Request.java:237) [gwt-servlet.jar:]
at com.google.gwt.http.client.RequestBuilder$1.onReadyStateChange(RequestBuilder.java:409) [gwt-servlet.jar:]
at Unknown.eval(userportal-0.js@65)
at com.google.gwt.core.client.impl.Impl.apply(Impl.java:296) [gwt-servlet.jar:]
at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:335) [gwt-servlet.jar:]
at Unknown.eval(userportal-0.js@54)