Same issue here. Been a faithful user of FCPX for some time and push larger projects out to customers a few times a year on DVD (that's what format they want). Went through my normal sequence to share to DVD (via the share menu) and got horrendous results. Simply unusable where normally I have no issue (720x480 is the current compressor output maximum quality, non adjustable output for DVD if you are curious which I am unsure if this was higher prior the last update). It's like an additional overlay layer of pixels was formed over the entire project, but most noticeable over any black screens (lets call this the "grime layer"). No problem, I'll export out a file and burn with another product. Nope, export as quicktime trashed the footage of specifically one of the 4 cameras used in the project. Most scenes it's used in become pixelated and glitchy (Panasonic AC-160 footage which I've used for 5 years now without issue prior). Cannot playback on the computer or burn a usable dvd without this constant glitch present from that specific footage. Note that the project in the timeline is free of errors or any indication of a problem, plays flawlessly. No problem, I'll bite the bullet and go Bluray, bump my footage quality up, not make my customers very happy, but get this done. Export clarity is notably clearer as would be expected going to HD, pixelation is gone on the panasonic footage, but the grime layer has returned. Ok, lets share from FCPX directly to compressor using the menu command and burn a Bluray out of there. Nope - grime layer returns. Checked multiple dvd players to verify not issue there.
In short, I have a 2 hour project I need 65 copies of in a week and I have no way to create a usable export of it. I have uninstalled and reinstalled FCPX 3 times as other threads have suggested. I am currently 85% through exporting a Master file of the project in Apple Prores 422 and hope to have something glitch free on the other end to try using, sigh, Toast to burn to something without the Grime layer returning.....
Running a mid 2011 27 iMac (yeah I know, it's probably time for an upgrade...)
3.4 GHz Core i7
16 GB 1333 Mhz DDR3 Ram
AMD Radeon HD 6970M 2048 MB graphics
FCPX 10.3.1
Compressor 4.3
Any thoughts or suggestions would be appreciated .
Thanks,
Karl
Group Effort Production