Issues in Tasks and Missing Querruleexec variable values.https://community.appian.com/discussions/f/process/25341/issues-in-tasks-and-missing-querruleexec-variable-valuesHello, Can anyone point out exactly what is happening? Our recent planned upgrade to newer versions of appian went as planned, but we started noticing missing tasks and also sudden alerts that are hard to trace where the root issue lies? Here&#39;s theen-USTelligent Community 12RE: Issues in Tasks and Missing Querruleexec variable values.https://community.appian.com/thread/98587?ContentTypeID=1Thu, 28 Jul 2022 06:19:45 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:6459d7c5-ba48-451a-8e26-c5612f670e6aStefan Helzle<p>There seems to be a problem executing the query rule with the UUID&nbsp;483ddfd5-4250-4320-9a80-3ebbe68804ce. Is this an old application still using query rules? Try to search for this UUID in Designer and hunt down the depending processes. Then check them.</p> <p>Please&nbsp;open a support case as an Appian upgrade should not impact existing apps.</p><div style="clear:both;"></div>