When i export any clips, mp4 mov etc... Premiere will say "export successful etc..." but when you play back the exported clip it always stops about halfway through and goes silent/black.

I've now had this across 3 seperate projects working with various media so I don't think it's a media issue.

Have also tried exporting via media encoder with limited success.

All of these projects export fine in Premiere v14

Any idea whats going on?