Further CPAP Issues

I posted a few days ago asking for advice as I was having difficulty keeping my events down. I tried to implement some of the advice given so have experimented a bit but have just had a record high of 28 AHI (10 more than my diagnosed AHI of 18.8). Is CPAP therapy maybe not suitable for me? I'm starting to think there's something else going on as my machine is pushing max pressure into my mouth and I'm still having events. Last nights sleepHQ data: https://sleephq.com/public/cfd16337-f1ac-4ef4-bf20-5ae6cf7c8578