www.makemkv.com

Seems to be issue still persists in 1.18.2. Just tried to install on a separate laptop, had to downgrade.

Linux Mint user, had issues with 1.18.1 too (Asus drive), but downgrading to 1.17.7 worked for me as well.
In case anyone else is wondering, decent instructions for downgrading in this thread: viewtopic.php?t=35897