Chris Guiver, you may need to use:
sudo ubuntu-bug /var/crash/FILENAME.crash
when filing crash reports in order for the upload/uploaded files to be generated, and, in turn, to get the errors reported successfully.
Given the reproducibility of the crash, and how you are using the latest Ubuntu release, I'll mark this Triaged for now, and an xorg developer may further review.
Chris Guiver, you may need to use: FILENAME. crash
sudo ubuntu-bug /var/crash/
when filing crash reports in order for the upload/uploaded files to be generated, and, in turn, to get the errors reported successfully.
Given the reproducibility of the crash, and how you are using the latest Ubuntu release, I'll mark this Triaged for now, and an xorg developer may further review.