Failed: quicktime error: -50 (EVERYTIME I USE 25 and 120 FPS on same video)

Hello guys,

Everytime I use compressor 4 to compress videos that I made on FCPX with videos from Canon 600D and GoPro on the same video I get "Failed: quicktime error: -50"

Could this be because I'm using clips with 25 FPS and 120 FPS on the same video?

How can I solve this? I need to use 120 FPS clips for slowmotion on the GoPro but then the Canon 600D doesn't shoot at 120FPS so I need to use 25 FPS.

I have no problem compressing videos with clips only from the Canon 600D.

Thank you

Are these Optimized clips in FCPX?

hmm... yes I guess. I have that option on.

Are you using any fxplug plugins? I.e. core melt lock & load, slice x or some fx factory plugins?

Export your FCPX Project as a Master File, then bring the exported file in Compressor for your final conversion. Does this work?

This error message often indicates corrupt or wrongly connected render files. If you cannot share as a Master File you might delete your Project and Event render files and try exporting again. This won't affect you export times.