Mariadb hangs/stalls on config change

Please your help with this wierd issue with Mariadb…

When I try to change the config within HestiaCP of Mariadb (Configure Server: MARIADB) it hangs/stalls… All databases get inaccessible, HestiaCP page won’t load anymore and restarting is only possible by killing the process.

Screenshot

System info
Hestia Control Panel: v1.6.0
Operating System: Debian 11.3 (x86_64)

Try making changes directly in the config files.