I have this issue also but only on MSNBC streaming on the Spectrum app and only the commercials are freezing so far. I have tried all the suggestions listed on this thread to no avail . Using a Roku Ultra
This incident was on Paramount+. Video froze when I fast forwarded. It also freezes when there is a change in activity where the stream had to get additional information (e.g. hitting skip on openings, commercial breaks). Audio continues. When fast forwarding, I can see the preview. On a few occasions the screen just went black with audio going.
This issue has also occurred on
Peacock (in addition to the issue described above, on the live feed of Sunday Night Football, the video would freeze after 15-20 seconds, this occurred on multiple Roku devices)