I've dealt with this error before but it now seems to be on steroids - Frame Substitution Recursion attempt aborting after multiple attempts on file...
Mac Mini M4 Pro
64G memory
Sequoia 15.1
Media Hard Drive - WD_BLACK 4TB SN850X NVMe SSDGen4 PCIe, M.2 2280, Up to 7,300 MB/s
1.9TB available of 4TB
Premiere Pro 24.?, 25.2 and 25.3 (beta)
I'm editing multiple footage files that I've used consistently since 2022. They are h.264 mp4 files - basically B-Roll masterfiles for work that have never given me any issue. Some of the footage is 59.97fps, some are 29.97. None are variable framerate, all have been exported into these file formats from their original sources and used without issue for some time, including on a much less powerful machine.
At the beginning of January I was using Premiere Pro (beta) - not sure which version - and every footage clip in the library started giving me the "Error retrieving frame" error. I couldn't get it to stop so I switched to the non-beta version 24.? Things were fine for a few months until today when all my exports failed and every timeline and clip started giving me the "Frame Substitution Recursion..." error. I had not changed any settings, no updates on software or OS, just halfway through the day errors started. Errors also occur in Media Encoder.
Things I've tried -
Clearing cache
Deleting rendered files (there were none)
Restarting Premiere
Restarting computer
Plugging the hard drive directly into the computer via different port.
Creating a new premiere file and importing the footage in fresh.
Upgrading premiere to 25.2
Uninstalling premiere and reinstalling 25.2
Uninstalling beta and reinstalling and trying on beta 25.3
Pounding my keyboard in anger.
Crying in the corner.
Nothing has worked, though for some reason I can't stop re-trying the last two.