[BUG] Can't change replay buffer settings using NVENC AV1 Lossless

[Ko01]

When setting NVENC AV1 encode to lossless, the replay buffer options are greyed out, at the bottom it says "cannot estimate memory usage. Please set maximum memory limit." but the memory limit box is greyed out too.

The only workaraound i've found has been setting the encoder to CQP, changing the replay buffer time and memor usage to whatever i wanted and then going back and setting encoder to lossless

 

[rockbottom]

Same behavior with any lossless codec. It appears that the memory limit is maxed out & can't be adjusted. I get 512MB when using lossless (32GB installed RAM). I suspect with more RAM the limit would be higher.