Used v2.4.3 and it crashed while scanning .ogm file.
So I updated to the latest release 2.5.4 but the problem remains.
Getting a message box 2 times (on v2.4.3 I got the msg box only 1 time):
Press OK to build crash info
and then Avidemux exists without creating crash information.
Let me know If you like to get the .ogm file for testing/debugging (~200 MB)