Hybrid converted video loses 5 seconds compared to original..?

[IanTopaz]

thanks...
How do I ensure export from Hybrid is 59.94?   It shows 59.94 for .MKV, but now I switched to ProRes422HQ, its saying its 60fps.

I'm not 100% sure how to add custom flags, I'd like to add:

-r 60000/1001 -vsync cfr -video_track_timescale 60000

How do I do that?