So I am working on a slideshow in premiere consisting of quite a few heic files and an After Effects composition. The first time I exported it, some of the photos were replaced with a black screen. After going back into Premiere, I noticed that when the playhead was static or playing across certain photos, the output would be black for that photo (everything else in the frame appears just fine). However, when I move the playhead with the mouse, the photo appears correctly, until I let go. I ended up fixing two of them by converting them from heic to a png. However, one photo is still exported with a black screen. The weirdest part is it looks fine in Premiere when previewing (playing, scrubbing, or still) and when I send it to Media Encoder to preview it, it also shows up in its preview. But it doesn't export with it. I tried converting it to different file formats but no luck. Also tried rendering with both Software only and GPU accelerated. Looking for some next steps to try.
I am working on a M1 iMac with 16 GB of ram. All Adobe software is up to date (on the 2023 release).