apple compressor failed rendering error 3

[Jerome Raim]

Don’t “send to compressor”. Either make the desired preset in Compressor and add it to FCP X’s File –> Share –> Add Destination –> Compressor Setting or first make your master Prores export then compress it in Compressor.

If you’re still having issues, close FCP X and Compressor and run Digital Rebellion’s Compressor Repair:
https://www.digitalrebellion.com/compressorrepair/

Jerome Raim
Post-Production
JeromeRaim.com