FUNC + ARR opens midi sync menu occasionally

Hello.

I barely used Arranger before and I decided to get a grasp on it. So I started experimenting with it and I noticed that when I press FUNC + ARR to toggle it on/off it drops me to midi sync menu oftentimes.
I wonder if it’s common issue with the MKII or is it only on my unit. Maybe it could be repaired (as if dusty/unclean button could cause that)? ARR button on its own works ok, it’s just the key combo sends wrong signal sometimes.
It is easily reproduced if to press FUNC + ARR several times in a row repeatedly.

Could please someone check if this is a thing?

Thanks

Previously reported and discussed in the main bug reports topic:

this is upsetting and reassuring at the same time. kinda weird it started popping up quite recently.
thank you for pointing that out Peter.