Anyone have the same Problem ?

 

As Long as i fly in good and moderate weather conditions everything is fine but as soon as thunderstorms becomes visible the Framerate drops darmatically to 1-2 fps and vas fills up to 4gb within a Minute or 2. This happens with the Default FSX as well as with the Rex Textures. Running DX10. Turned down the visibility and Cloud drawing distance Options already but this dosn't make any difference. CPU and GPU around 60%

Maybe your FSX.cfg is corrupt? As far as I know,  running DX10 should greatly decrease the chance of OOMs. Something must be taking up that VAS. Maybe addon airports, scenery, terrain mesh/textures, addon aircraft, etc? Try doing it with a default cessna, at a default airport, with default fs textures. 

Out of curiosity, what resolution do you have your REX clouds set at? Are they DX5 or 32 bit?

And how many cloud layers have you set in ASN?

default fsx, default fsx cloud textures, pmdg 747 Airport addon fsdt lszh an a-a vtbs. Longhaul from lszh to vtbs (11 hours) cloud layers default 5. after 4-5 hours of flight the crash occurs, not only with the 747 but also with the 777 i tried 1024 32bit Textures and the fsx default ones. can't reproduce  it with a short fligh but it occurs everytime on a longhaul, probably the hotfix help, will try it out....

Disable sceneries that you dont use.