www.makemkv.com

$ makemkvcon list
MakeMKV v1.17.3 linux(arm64-release) started
Automatic checking for updates is enabled, you may disable it in preferences if you don't want MakeMKV to contact web server.
Illegal instruction


I think it is more of a similar issue. Note that now the 'Illegal Instruction' is ...

I have the same issue on a Raspberry Pi 4 as well.

Version 1.17.2:

#> makemkvcon list
Illegal instruction (core dumped)


Version 1.17.1:

#> makemkvcon list
MakeMKV v1.17.1 linux(arm64-release) started
Automatic checking for updates is enabled, you may disable it in preferences if you don't ...