Also getting a sound bug of sorts - since I removed the updated beta a week ago, all sound will sometimes go completely distorted and remain that way, co-enciding with hooking and a massive drop in frame rate.
Other times, the sound will fade away over the period of 5-10 seconds to complete silence. Restarting the game fixes the problem.
Prior to this, I usually just got the level start sound bug but it's mutated recently and the patch from yesterday did not help. I tried deleting my ini's and also verified cache integrity.