The best way to get Adventure Pilot's attention for things like this is to submit a Bug Report. If multiple people report the same bug, especially within a short time, it should get their attention.
I'm seeing AIRMETs now today. With the exception of not seeing AIRMETs for Turbulence above 18,000. But looks like all AIRMETs below 18,000 are showing on iFly.
Well, there it is...it's working for me now also.
I sure do appreciate the folks at Adventure Pilot taking the input of users and working out issues.
Dan