Hey KOP, I had exactly the same about 18 mths ago (I think I posted about it on here). The MI's drove me mental, I emailed them and offered to rewrite the install instructions the weren't in the least interested, even snobby! The amount of time I spent pffaffing around with it adjusting, to ensure no trickle from the magnetic seal.. I should have charged another £1000... for all the stress, hassle and downtime. 🤪
P.S. Agree absolutely "Never ever will I fit a crosswater frameless single pivot door quad again" neither will I until they agree to pay me to re-write the installers instructions.