On the v50 release today, I see you fixed the 2048 Processing Latency issue however, now when viewing at 4096, the speed on the meter is going fast and when closing my Winamp it now freezes at closing and crashes. But I must say the music quality sounds excellent when it plays.
A lot of stuff has been rewritten under the hood. But I don't see a hangup when closing Winamp here, which makes it hard to determine what's going on. We have found some weirdness in the Winamp startup code (especially if you ever press "Configure" in Winamp itself - have you done that by any chance?), which I need to look into. Are you do anything specific to reproduce this? For example, was audio playing when you closed it or not, stuff like that?
Absolute Highs display is fixed now.
Edit: Winamp weirdness as well, but I don't think that can have caused hangups or crashes. So, if you have more info please let me know. I will run a new build now (BETA051), please let me know if it fixes anything.