Minor AP and ATC annoyance

[Nagilem]

Just wondering - does anyone else have ATTH AP issues where when you turn the Attitude hold on, the VVI sinks 3-4 degrees before staying put? This happens all the time to me in BOTH level and pitched up flight. I don't think its speed related as it happens without any airspeed change, and happens immediatlely after I turn on AP and let go of the stick... It's not a joystick thing because I can put the plane in level flight and let go and not have the VVI sink... Only when I put AP on.

 

I also have a similar issue of drift with ATC - I set ATC for say 350kts and within a few seconds, the speed drops off to 348 or lower without any change in attitude. This is in level flight.

 

This started up after the last few OB patches. Not sure if its maybe something with my setup or maybe that its a realism thing...