Audio to main out toggles not working

Greetings. I seem to have found a bug in my A4. In a kit I was designing, I turned off track 1’s output to the main mixer (I was using the direct out), and now it won’t turn back on. I’ve tried cycling power, and I’ve tried different global slots, in case slot 1 was corrupted or something. Also of note: tracks 2 3 and 4 won’t turn off for the kit no matter what it says in the track routing configuration.

Volume is up on the amp page for track 1, track 1 is not muted, track 1’s direct output passes sound, and track one is up in the mixer.

Help???