gscan2pdf on Linux Mint: Scanner works only as root

I'm trying to get a Brother ADS-2200 scanner to work with gscan2pdf on Linux Mint 21 Cinnamon. The scanner is recognized and works with Document Scanner without any issue. However, when opening gscan2pdf, it doesn't: Scanner plugged in: When starting from Menu, the GUI opens and closes again without any info. When opening via command line ( gscan2pdf ), the GUI asks me to restore a crashed session, then gives me Segmentation fault (core dumped) When opening from command line as SU, ( sudo gscan2pdf ), the GUI asks me to restore a crashed session, then gives me Segmentation fault (core dumped)

Question by Timm S. on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.