Havent flown both these AC in awhile. Tried the F50 Fokker. It wouldnt hold altitude. Would go right through the set altitude. Not sure if this is due to the newest update. The other carenado AC like the new 206 does fine. Was using Propwash AP but disconnected it for repeat flight but still had altitude hold issues. Nav mode works fine. Same for the Saab 340B.

Having the same problem with C208 and B1900, AP won't hold altitude or starts dolphin diving up and down. Heading and gps nav work fine.

Sent message to Carnado, They're looking into it. Probably from last XP11 update.