ndq0345934:
Can you try downloading the 18.11.18 appimage and running that?
If you can, it will help the debug process by knowing whether you get the same result.
For quite a few months now a “Beta” version releases, where it’s only visible in the forum for download. That entire post/thread is devoted to fixing that beta version’s bugs that people discover. Then that version will get a version revision number (Example: 19.01.NN) and is released in the “Download” link. I believe NN is the day within that month.