Flow will not activateIssue When trying to Activate flow or save it provides an internal server error.Also, sometimes it will say Activation success but it still will not activate.ReleaseParis Patch 5CauseCheck if the flow contains Send Email Action with data pills. If then, This is a bug on the platform. PRB1420275 is raised for this issue - https://support.servicenow.com/problem.do?sysparm_query=number=PRB1420275The issue is with the Send Email action present on the flow.If the email HTML body contains a table with data pills while publishing/activating the flow, an internal server error will be seen.The fix for this PRB is to delete the "Send Email" actions within the Flow and recreate them manually. [Please take a screenshot before deleting for reference purpose, if required]Unfortunately, there will not be a more robust solution until beyond the Quebec Patch 1 release.For testing purposes, You can make a copy of the flow, delete the Send Email action, and try to activate the flow. The flow should get activatedResolutionDelete the "Send Email" actions within the Flow and recreate them manually. [Please take a screenshot before deleting for reference purpose, if required]Related LinksNote: The PRB fix prevents this defect from happening, but if the flow/action is currently affected by this defect, it will stay defective until the workaround is performed.