Exorcism 1st.

Your stunt hubs may have 135 spacing in a frame designed for 130 and a lousy QR design.
Sounds like your mech has left few stones un-turned but that smells like a possible rock to roll over.
That being said I've never heard of anything like your extreme problem, I would have expected frame components had come adrift. Chainstay, dropout not really attached........both.....?

I don't tolerate broken bones so well anymore, an immediate total permanent fix or get rid of it now it would be my plan.

-Bandera