I will try to get you additional information as it presents itself
However in the meantime it appears that when the HDR Subsampling is set to 4:2:2 it occurs more often. In fact this morning I had to restart the Roku Ultra 3 times and still could not view a video (Daredevil series) on Disney+. Setting the HDR Subsampling back to 4:2:0 allowed me to watch the episode I was trying to watch.
This has happened in the past and at the time manifested as a HDCP handshake issue. Setting the HDR Subsampling to 4:2:0 helped to resolve the issue then and appears to be doing the same now. It went away in the past after an update to the Roku OS and hadn't been a problem until recently.
Device Model: 4802X - Roku Ultra
Serial number: X01000K2S5UN
Device ID: S0DA23A2S5UN
I don't know that a video clip will provide any other info as my screen simply goes black and my tv displays a message that there is no video signal on the current input. Says to switch to a different input and I think it also suggests resetting the display device on the current input. Restarting the Roku Utra just returns the image on the current input back to the Roku Home OS menu.
Then I can go to the Disney+ app and most times play the same video I had problems with. Most times but as I said earlier in this reply having the HDR Subsampling set to 4:2:2 would not let me view the content from Disney+ after 3 attempts. I then set it to 4:2:0 and it worked.
I tried moving the Roku Ultra from my TV's HDMI input 1 (2.0) to HDMI input 4 (2.1) and didn't make a difference.
I will try the routine you suggested and get you the Tracker ID but when this happens the Roku is locked up and doesn't accept any commands from the remote until I power cycle/restart it. Not sure if the Tracker ID would be there after a restart.
Thanks for any help as this is frustrating and out the money I have paid for a replacement Roku Ultra that apparently was not the problem.