@Harry - is this an iOS problem or something you hope to fix in an update of HLT? You mentioned in an earlier 2022 post that iOS 15.4.1 seemed to solve the issue. What happened -- did later versions of iOS cause the problem to reappear?

Hi Harry -- I seem to be having this same problem with iOS 16.5 on an iphone 12 mini using Grand Prix edition. After overlaying video, the thumbnail does not appear in HLT and the iPhone hangs up requiring a reboot. Also, iPhone functionality of the phone/ringer are disabled until rebooting the iPho...