I have tried reproducing it both on disco (without the prevent- reordering patch) and stock bionic with german locale installed.
I tried adding all available columns, reordering them, click on them. I also imported some MP3 with altered metadata with umlaüt on each category and retry the above (adding, reordering columns, double clicking…) This was my investigations so far (I didn't spot anything obvious in the code as well). I tried as well the above step descriptions. Note that I only have a star icon in French and a generic icon in German (and French translations only for those items), compared to your description. See the video attached. Subsequent rhythmbox close/launch doesn't change anything. What am I missing? ** Attachment added: "Capture d’écran vidéo de 20-03-2019 15:15:48.webm" https://bugs.launchpad.net/ubuntu/+source/rhythmbox-plugin-alternative-toolbar/+bug/1812683/+attachment/5247847/+files/Capture%20d%E2%80%99%C3%A9cran%20vid%C3%A9o%20de%2020-03-2019%2015%3A15%3A48.webm -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1812683 Title: rhythmbox crashes when trying to play music To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rhythmbox-plugin-alternative-toolbar/+bug/1812683/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs