I am also seeing this with a TCL65R617. I can trigger the issue with my Nintendo Switch and my Xbox Series X from HDMI ports 1, 2, and 3. I believe this has to do with the consoles adjusting their resolution as I get this mostly when having to change resolution on the Xbox. I can trigger it on the Xbox in 720p or 1080p
I also have a Roku TCL32S327 and I can't reproduce this
Have you tried a full reset yet? You will have to re enter some information but it should solve the issue. Report back so that people can find the solution as I posted above.
I was hoping to avoid doing that and having to set everything up again but decided to go ahead and do it. Thus far 2 days and the issue hasn't reappeared so it seems to have worked. Thanks!
