Hi,
I have edited a wedding with no effects and trying to export it, each time it just crashes at random times and then restarted my mac. I have over 4tb free space, and the movie is 58mins. The video plays fine in the timeline.
FCPX Version 10.4.8
MacBook Pro (Retina, 15-inch, Mid 2014)
2.8 GHz Quad-Core Intel Core i7
16 GB 1600 MHz DDR3
NVIDIA GeForce GT 750M 2 GB
Intel Iris Pro 1536 MB
The restart my mac gave me is as follows;
Try selecting the Project in the Browser, then from the FCP X File Menu, Delete Project Render Files.
Also make sure Background Render is switched OFF in the FCP X Preferences.
Try again to export.
Al
Try selecting the Project in the Browser, then from the FCP X File Menu, Delete Project Render Files.
Also make sure Background Render is switched OFF in the FCP X Preferences.
Try again to export.
Al
TL;DR: Are you "down-resing" your project during export eg. from 4K to 1080p HD? If so, try "down-resing" before exporting. It's an unconventional solution which I haven't seen suggested anywhere else, but it worked for me and I haven't had any issues since.
I will offer a solution here, but first I have to say that I started having this same problem on my late-2012 iMac with the following specs (similar to yours):
Up until about a month ago, I didn't have any problems with exporting my project to YouTube. Suddenly, about 2 minutes into exporting, my iMac crashed and rebooted. This happened over and over. I tried many solutions offered by the Apple Support Community (including those provided in this thread) and various Google results. None seemed to work. I then uninstalled and reinstalled FCPX. Crash. I reinstalled MacOS Catalina (because the problem started after I upgraded from Mojave and I wasn't able to roll it back). Crash.
After wracking my brain over this for several days trying to figure out which variable(s) had changed, it suddenly occurred to me that I was previously importing and rendering all files as 1080p HD (1920x1080) and exporting as such. For my latest project, I decided to import and work on the files in 4K and export to YouTube as 1080p HD. CRASH! CRASH! CRASH! I converted the project to 1080p HD, and BOOM BABY! it worked! I haven't had any problems since then.
So, it appears my iMac is not able to handle the conversion process during export. However, my MacBook Pro (15", 2017, 3.1 GHz Quad-Core Intel Core i7, 16 GB 2133 MHz LPDDR3, Intel HD Graphics 630 1536 MB) is.
Give my suggestion and try and let us know if it worked for you.
Good luck!
Chris
Is your Mac getting hot and the fans rev up more than normal during the export?
Al
FCPX Crashing and Restarting my mac
