Thank you for the suggestion but I am having trouble understanding. First, I believe it can happen any time I tap on Poweramp, whether it is open already or not. If I run a search in settings for legacy mode, it directs me to Misc but I don't see anything once I am there.
If I go to Poweramp setting > Misc, I do not see File Access Legacy Mode anywhere so I am not yet able to follow that step. I have done several Full Rescans.