You probably just need to set the framerate to 23.976 manually.
Oh, I see the option now. Thank you. And thank you for making v.3.0. It looks amazing.
Sigh, seems it wasn’t so simple after all. I didn’t see an option for 23,976 so I picked 24 instead, I figured it didn’t matter, but now the audio is out of synk and I can’t find an option for 23,976 in TSMuxer, so I’m back in square 1 and still need help I’m afraid.