rigaya
I think it might be conflict with CUDA vesion and gcc version. Which version of CUDA is used here? For gcc14, at least CUDA 12.8 or more shall be required.
The option --cuda-mt 1 can be unstable, so it's strongly discouraged for anything other than testing purposes. However, if instability was already present in version 8.11, it's unlikely to be...
Thank you for reporting, the sample helped me a lot. Shall be fixed with [NVEnc 9.06](https://github.com/rigaya/NVEnc/releases/tag/9.06).