I configured everything fine w/ my iPad, and it works properly on it, but not so with my iMac (running Monterey 12.7.1) which is what I’d greatly prefer using.
Since you have switched between devices (iMac to iPad) you need to forget the H90 in iMac Bluetooth settings and forget the pass key on the H90. Then, try to re-pair to your iMac again. What is happening is the H90 remembers the pass key for the iPad but not the iMac.
