Unknown exception occurred trying to process task: Novell.Zenworks.AppModule.LaunchException

Multiple (patch) bundles are assigned to Windows devices.
Bundle error messages show in ZENworks Control Center while the bundles seem to have installed fine.

Error message in zmd-messages.log.
"...
BUNDLE.UnknownExceptionOccurred UNKNOWN_EXCEPTION due to failed set_IsDirty
..."

or like
"...
[BUNDLE.UnknownExceptionOccurred] [An Unknown exception occurred trying to process task: System.NullReferenceException: Object reference not set to an instance of an object.
at Novell.Zenworks.AppModule.AppLocalState.GetDeviceInstallVersion()
at Novell.Zenworks.AppModule.AppActionItem.IsAppInstalled()
at Novell.Zenworks.AppModule.AppActionItem.SetInitialStatus(Boolean finished)
at Novell.Zenworks.AppModule.AppActionItem.ProcessAction(APP_ACTION launchType, ActionContext context, ActionSetResult previousResults)
at Novell.Zenworks.AppModule.AppActionItem.ProcessHandledAction(APP_ACTION launchType, ActionContext context, ActionSetResult previousResults)] [] [78d3749f7a7f76fb562caec8aca38baf]
..."

This is fixed in version 11.2.3a - see KB 7011295 "ZENworks Configuration Management 11.2.3a - update information and list of fixes" which can be found at https://support.microfocus.com/kb/doc.php?id=7011295

Workaround: if it is not possible to upgrade to 11.2.3 at this time, in the interim, Novell has made a Patch available for testing, as part of a Monthly patch update: it can be obtained at https://download.novell.com/Download?buildid=QA0w58MMJWo~ as "ZCM 11.2.2 Monthly Update 1 - see TID 7010464". This update should only be applied if the symptoms above are being experienced, and are causing problems.

Please report any problems encountered when using this Patch, by using the feedback link on this TID. 

Simultaneous bundles status checks are not correctly synchronized.