FL become unusable for the time frame. It's as if a bitcrusher or distortion is added to the master track. The only way to fix it is to Restart flstudio or go into ASIO settings and move the buffer ...
FL to 20.5.1 (from I believe 20.1) I've had some serious audio buffer issues. I'm using a focusrite scarlett 2i2 sound card and a custom built desktop with very high specs.
I've updated all the drivers on my soundcard ...