That past 2 pb runs i've had did this stupid glitch and I just wanna know if it's something that occasionally happens, how to avoid, or what to do if it happens.

thats called getting crosspiped basically you did it so fast that the game didn't have time to switch so the game defaults to the Crosspipe because it was on option "null" to fix this try being slower and waiting for the thing to switch fully. This happens in the base game as well