NVENC FFMPEG encoder not reporting stream buffering correctly #759

Operating System

Windows 11 22000.376

OBS Studio Version?

27.1.3

StreamFX Version

0.11.0.0-g31d56703

OBS Studio Log

https://obsproject.com/tools/analyzer?log_url=https%3A%2F%2Fobsproject.com%2Flogs%2FzyyS4xiCY9VHqnUC

OBS Studio Crash Log

No response

Current Behavior

When streaming with NVENC ffmpeg encoder, dropped frames and buffering are not displayed on Stats window correctly. Status will show as all green with no dropped frames until Stream is stopped.

Expected Behavior

That any stream buffering or dropped frames will be shown correctly and in a timely manor.

Steps to Reproduce the Bug

Start streaming. Run stream for any amount of time. When ending stream, the stats in the Stats menu will finally update to their correct values.

Any additional Information we need to know?

This issue does not occur with any other encoders tested: (built in OBS NVENC H264, AMD AMF FFMPEG H264, CPU x264).

This issue also did not occur with StreamFX 0.10. I am currently using release 0.11.0.0-g31d56703

If there are any settings changes I need to make that might be the cause, I would love to know more! I know a two GPU solution isn't ideal, but generally this setup runs very well.