Techniques on debugging runtime errors?

[Andrej Mitrovic]

Actually it looks like I can recreate this bug in non-realtime mode as
well. I forgot that I can actually process audio at whatever timing I
want to (I haven't touched this project in a while..). Oddly enough I
can call various DLL functions but it fails the second I try to pass
some audio data to it. Other plugins work fine. I wonder what I'm
missing here..