Hi! Unfortunately I have seen this occasionally in the past with my own workflows, sometimes it appears they get "overwhelmed" and things get a bit buggy. Typically happens with me when there is a significant amount of testing that takes place over a short time. This is not official by any means, and totally anecdotal. With that being said, when there are Workflow issues that do not typically resolve themselves (which I have found they often do), contacting support is preferable as they are able to see the "backend" logs and offer greater insight as to the potential root cause. I hope this helps!! Thanks!

Thanks Don. Yes, that's what is happening...someone has been doing a ton of testing, but the odd thing is it's only happening with the parent flow, not the helper flows. He also created a simple test flow to see if just that would work correctly, and it didn't. But again, all the other flows are still working. I did contact support and they suggested "unchecking the "Save flow history" box, save, then edit again, check the box, and save. This should re-set the flag to save the flow history data for that flow." Unfortunately, that did not work, so will need to dig deeper. Thanks for your response!