[Randall Tolliver]

This is a bit late, but I just ran into this problem. Failed: 3x crash service down. Im on 4.4.1 by the way.
My compression is a DNG image sequence. I had changed to correct parameters for the video, like fps and color space and I was getting this error. I then went to the compression it was going too: Apple ProRess 422 HQ. I noticed some things off. I’m so use to ProRess just working right out of the gate, I never think I need to change stuff. But I did. Since it was an image sequence I checked a different playback for retiming and then I also noticed it was changing color space to a different color space. I switched those two things…and it worked! I don’t know if this helps you, but maybe looking into the compression your video is going to turn to be might help.