ProppFrexx ONAIR User-Forum

Seems like I have a lot of odd problems right now.
This started to happen once in a while from 3.15.x. When this happens no panels are loaded at all after the error message. Ni mixers, no carts, nothing. I have to restore from backup to get back up and running. This happens maybe one out of ten starts of ProppFrexx. Got any idea what this might be?

Yes, that look like (as already assumed), that somehow your mixer setup (input and output) is messed up.
Maybe you should start your mixer setup freshly again.
If you want that, close PF and then delete the file "Default.mixer" (and if you also want/need the "ProppFrexx ONAIR.layout" file as well) both contained within the ProppFrexx AppUserData folder (viewtopic.php?f=9&t=20) and then restart PF to setup your mixer settings again.