MKVToolNix for Debian 12 "Bookworm" won't start

I been having issues starting mkvtoolnix on Debian 12 seems one of the plugins is the culprit.

Jun 20 05:16:25 10889484 kernel: mkvtoolnix-gui[1993981]: segfault at 0 ip 00007fce083c9a6e sp 00007fff7f68afc0 error 4 in libgstreamermediaplugin.so[7fce083ba000+35000] likely on CPU 5 (core 5, socket 0)

Assistance needed thanks

Welcome!

I’ve just set up a default-installed Debian 12 with Gnome, fully updated it & then gave the current MKVToolNix Debian package from my repo (v85) a try. Works just fine.

Therefore I don’t think there’s anything we can really do to help you. Try updating your system fully if it isn’t up to date.