HUD Fading In & Out

[TexasGary 47]

I am using W10 with P3D V3.4, the PMDG 738NGX, AS 2016, TrackIR, and the latest version of FSUIPC.  I recently noticed a weird issue with the HUD.  In clear skies the HUD works fine.  But while going thru clouds, the HUD display kind of "fades" in and out (i.e. goes from normal brightness to very dim and back).  Its like the HUD is actually outside the aircraft passing thru the clouds.  I tried switching from auto to manual mode, turning the brightness up all the way, and zooming my POV in and out, but that didn't help.  Any ideas on this one? 

 

Thanks.

 

[ankh21 17]

Did you play with the "wing fade effect" setting in AS16? It is mentioned, that it can lead to haze inside the cockpit...just an idea.

 

Matthias