I frequently take timelapse videos with my Sony a7sii which spits out an .avi file using the .mjpg codec. Today, Premiere randomly stopped being able to read them.
I am running the latest version of Premiere CC and Windows 10 as of 2/8/18. System is an AMD Ryzen TR 1950x w/ 32gb of ram, gtx1080, m.2 OS and scratch disks.
The first symptom that showed up was that .avi files in my timeline would playback as a different clip (whatever was previous on the timeline) but with inverted colors. I could load the clip into my source monitor, but it would not play back and looked stretched out. I tried re-linking the media, clearing the preview files, and clearing the cache.
Now when I load in any of these clips they just show up as black with faint blue vertical lines. When I try to play back the clips the blue move slightly but I still only see black.
Source and program monitors (showing slightly different vertical blue lines - faint but they are there).
![Screenshot_2.png]()
![Screenshot_3.png]()
I have also tried
- resetting premiere (holding alt while loading)
- completely uninstalling and reinstalling premiere
- creating a new project containing only this one clip
- tried different time lapse clips (none work)
- moved clips to different (fast!) drives - no change
- loaded a different .avi file containing .mjpg that I downloaded from the internet (it works fine)
- tried using the clips in premiere on another computer (they work fine there)
- Switched renderer between CUDA and software only (no change)
I should note that these clips play back fine in Windows Media player and VLC. I realize I could re-encode them but I'd rather figure out what the problem is and why they stopped working. It's as if Premiere's internal codec is malfunctioning and a re-install didn't fix it.
I'm not sure what else to try. Any help would be greatly appreciated.