Encode says 130% complete for some reason and hasn't finished

[Selur]

Seems like BestSource properly detects the frame count and doesn't add duplicate frames.
"Filtering->Vapoursynth->Misc->Source->BestSource for input"

[lostsnowboardvideos]

BestSource for input worked! Thank you. Tried the other settings and still kept getting the duplicates, even with SelectEvery and offsets enabled. Feel like I was close with that but the settings kept speeding it up and not matching it to the audio. "Overwrite output to" also didn't work.

[Selur]

Strange, overwrite output frame count worked fine here, but using BestSource is the better solution.