Try to delete the main.mcf file located in your documents\Aerofly root folder, see if that resolves your issue.
--> I've done as you adviced DrHotwing1 (deleting main.mcf file), but the result was surprisingly quite different:
+ Pro:
- Finally I got my TrackIR function back in external view (to pan around), which never worked before in my AFS2; but I could neglect it up to now because ~ 99% of the time I'm flying in VC view-mode.
- Certain microstutters have gone which forced me to restart the sim several times before they have been gone (--> this issue occured after the last two OB updates).
- Con:
- Any and all of IPAC's airports in Colorado have disappeared (e.g. Denver, Aspen, Telluride....) completely on my airport selection-map; so it's not possible to select them as start points anymore. --> the only exception is ORBX's custom KEGE-Eagle/Vail which is further visible and selectable.
Regarding the R22 I could not notice any remarkable differences (Professional Mode still way lot easier in comparison the time BEFORE the last two OB updates), and I've dicided to do a personal hardcore-test:
Shortly after the initial release of IPACS's R22 helicopter I became very ambitious to master this bird in Professional Mode only. But it grew quite frustrating because I tried this with only one control device, namely the Thrustmaster T-16000 stick.
Long story short: because of the challenging and fun making flight model of the R22 I decided to make an own DIY Collective Stick, together with a complete remolding/enhancement of my old Saitek Rudder Pedals.
The results were (and still are) just splendid, and I was able to safe a LOT OF MONEY -- it could'nt work better 

.
And the best: I started to master the AFS2 Robinson in Professional Flight Mode exclusively (only TrackIR - NO VR).
Yesterday I've done the following test (of course Professional Mode only)
- Selecting a provoking test-scenario for the R22 (no VR, but TrackIR).
- I decided for heli-jumps in LA Down Town & New York City (thank you IPACS; you have done a superb job in LA - this spot is almost helicopter paradise to fly - the helipads/lightnings are beautifully crafted - a lot of joy to fly in LA Down Town
) - Wind & Turbulence settings at 60 % up to 70 %.
- Daytime at dusk !!! --> which it makes more difficult to land on the top roofs and heli flying in general without VR - because in 2D/with TrackIR the perception of depth is constrained.
Results:
- With my full flight gear-setup and devices these two flying parcours were pretty easy to handle, as expected.
After this I've done an artifice: I completey disabled my Rudder Pedals and Collective Stick and reverted my whole heli-flying setup back to ONLY ONE STICK MANAGEMENT (just one control stick - the T.16000) as months before (see above in this long post).
2. After adapting over some minutes I was able to fly the same difficult parcours WITH ONLY ONE TWIST AXES JOYSTICK (no other device) even without any faults or crashing - I even could land within the red circles and straight on the numbers by the first attempt.
Something I could have never achieved weeks or months before, because it was so hard and difficult to fly without pedals and collective, and only in 2D.
This second attempt performed so well that I had to look more than twice if the flight model - maybe - reverted back to easy mode, but this was not the case !!!
For me this is a clear evidence that the R22's flight model has changed towards significantly easier to fly during profi-mode.
If a heli novice would have asked me months ago if it is possible to master the R22 professional flight model with only one joystick, I would have answered: You will experience a lot of frustrating moments !
But now I can say to the same novice: Yes, of course. It would be useless to spend a lot of money for a collective lever and for rudder pedals. ONE JOYSTICK WITH TWIST AXIS WOULD BE ENOUGH !!!!
IPACS, this is so embarrassing !
Sorry for the long post, but it was necessary.
All the best to all of you.