I had posted this same issue a few months back but deleted the output file and have not had the issue until last night. I saved the file this time so you all can see the issue firsthand. It happens randomly but I will provide as much detail as possible and logs if needed. I am using version 1.3 but previously this same issue happened with 1.4 as well. I have a RTX 5090 and had to revert to driver 591.85 due to recent drivers being extremely buggy.
The issue is random small parts of the video are blurry and seemed to be skipped in the upscale. You can see it at 54 seconds, 1:10 seconds and 1:51 seconds on the wall. It may even be through the entire video in the middle but just more noticeable in some scenes. I use this almost daily too and no other issues I have noticed for a while. Happy to provide logs or any other information if needed but hopefully you guys can figure this out. It does not happen all the time but given how long this model takes to run, it causes significant delays having to run the model again. Thank you!
SLM video - https://drive.google.com/file/d/1tvCzL1XTDLLECHSfgfCAT_IW5-ZQZ9cW/view?usp=sharing
Original video - https://drive.google.com/file/d/1ngj_7Q6N3KJQcLP1c-M8toH9rB7TZucm/view?usp=sharing