UE4.25 Audio Engine Bugs - Update from 4.22 - need help!

Does graphic rendering compete with audio rendering? Like could texture pooling be indirectly causing Audio Underruns or anything like that? I tried ridiculously high buffer settings and unplugged ALL audio nodes with the exception of background music and within 8 minutes of play my log is growing with Audio Buffer Under Runs every few seconds. It’s totally unplayable even with no audio nodes plugged in and the ridiculously low audio settings attached. As stated, I have an earlier version of the same game packaged from 4.22 which doesn’t have a single noticeable hick up in audio. Unfortunately i’ve built too much on 4.24 to roll back.

The game also has no logic connected to event tick beyond touch sensitivity so this is quite a head scratcher. Unless anyone has any suggestions my next move is to create a blank project with nothing but background music, see if that gives me Underrun errors. If it doesn’t I will migrate my current game over and see if that miraculously solves.