Premiere Pro Only Exporting One of Frame of Clip
I'm runnning the latest versions of Premiere and Media Encoder (24.5) on an iMac running Sonoma 14.6 and quite often export many clips from a timeline by sending them to Media Encoder. I've never had any problems until this week when both Media Encoder and Premiere randomly started only exporting the first frame of the clips (say it's a 15 second clip, the file will be a still of just the first frame for 15 seconds).
I tried clearing all cache first fast from both to no avail, tried many variations of timeline and sequence settings, uninstalled and reinstalled Creative Cloud entirely and used the Creative Cloud Cleaner tool to no avail, and finally did a completely fresh install of the Sonoma OS along with Creative Cloud and the issue persists.
I've tried putting the clips in a bin and exporting all the clips at once, but it randomly misses some while duplicating others. Render and replacing the clips from a duplicated sequence also causes similar random issues so I've always manually sent each clip to Media Encoder since it also allows me to change the naming convention for the clips being exported.
Does anyone have experience with this issue? There are other similar questions asked in the past but they don't seem to have needed nearly this much troubleshooting and were solved with updating or reinstalling.
Thanks in advance for your help.