This was fixed in beta 2 of 11.2.5, we are on beta 3 presently. Not sure if it affects hardware or not, but my phone is generally on silent and it doesn't happen while it is on silent, so all cool at my end. Guessing 11.2.5 goes public next Tuesday.Good to hear that they will fix this in 11.2.5! I have the feeling that this haptic-feedback-cc-bug isnt good for the HapticEngine... maybe iam wrong.
Also the haptic feedback is very random for me in 11.2.1/11.2.2 when im closing the cc. Also fixed in 11.2.5 beta?