[Michael Paul]” I want my subtitles to be shown on broadcast.”
I would wager that whatever channel is broadcasting wants the subs as a separate file so they can put it into their broadcast system. I’ve never had a channel that would pass burned in subs.
I’ve had mysterious framerate problems with Prores as well. If I have generated black video inside Premiere or if I have gaps in the edit the export goes nuts with the fps. HOWEVER if I make black video in AE or whatever and use that to fill the gaps the export is fine. I’ve written about this a bunch of times but no one seems to care.