Howdy!
So basically I have seen a couple of other forums about this issue but its worse now...I use cakewalk and komplete kontrol, and the issue here is specifically with the play series of komplete kontrol.
The audio sounds fine as long as you load up the instrument from the play series and ONLY play on the midi keyboard without pressing play/stop (spacebar) but when you press play then stop it, it resets the cut off knob to zero and the sound becomes muffled and really low. it resets it every single time you press play and stop. The previous fix I found from another user was turning off the "zero controllers when play stops"...I went to check if I had it on but its not even there anymore . If anyone knows an alternative fix that would be awesome!
Cheers and have a wonderful day!