OBS recording question

So...

I'm using OBS Studio to record. I'm running into a problem that seems random but is rather annoying.

I recorded 80 mins of Craft the World last night, about 4 episodes, that I later cut up into individual pieces in my video editing software. When I told OBS [using SHIFT - -[minus sign] ] to stop recording it got stuck on 'stopping recording'.

It stayed this way for several minutes so I clicked it again and it finally stopped. The video file, however, lost the last several minutes of what I did, and there were several places where the commentary could be heard, but the movement on the screen was locked to a single frame. Essentially the entire thing was unusable.

I record in 60 fps to MP4.

Anyone run into this or found a fix? I lost a ton of work there and it has happened a few times lately.

Thanks