Premiere Pro Audio Track Randomly Mutes, Ruins the Export!

Hey Adobe - I am at my Wit's end here. 

There is what appears to be a repetitive bug occuring that is destroying my playback, workflow and exports from Premiere Pro.

My video project has multiple audio tracks (sound design stack includes interview dialogue, SFX and musicbeds).

I'm having issues with my interview dialogue, situated on tracks A1-A4. I have A1, A2 and A4 muted.... (A3 is the cleanest track that I prefer, but I'm electing to keep all 4 tracks in case I need to pull bits from others). 

During playback, track A3 (my chosen interview dialoue track) will mute itself, then unmute... then mute, unmute... popping on and off (I can see the actual M button on the left side activating itself and deactivating). 

Guys... pardon my (redacted 😉 language here but....This is so **expletive expletive expletive** prohibitive and annoying!!!! Playback is a nightmare but the worst part is that it's destroying the actual export!! There are segments of my exported piece that are actually muted. 

The only thing that seems to impact this is if I move the move within the timeline, horizontally. 

I understand there is a dev queue and QA process here but I think this one warrants attention. If this was only impacting playback within the software I'd be able to deal with it. But the fact that it's actually affecting the final export is what the issue is. I can't complete the film with this bug!

Hope that helps... I'm not aware of any other steps I'm taking that would recreate this bug but I'm happy to help send screenshots where helpful.

Thanks for hearing me out!