I have extra SSDs and create a fully bootable clone every two weeks or so.  I also make a backup of my data drive once a week and a clone of it every two weeks. 

I'd repeat that but do not wish to be redundant!  LOL!

4 hours ago, Republic3D said:

I'm glad you were able to fix it Ixoye!

Since the issue might have been somewhere in the Windows file structure, or registry - does anyone know a way to verify a Windows 10 installation that actually finds broken files and replaces or repairs them? Is there a built in feature? Or a tool you can use? It would be handy, so people don't have to re-install Windows completely when an MSFS update goes sideways. Not everyone has a dedicated flight simulator computer, so there would be a very big job of re-installation of absolutely everything. There must be an easier way. I don't have this issue myself (knock on wood), but lots of people are dealing with it. 

Here's how to use the system file checker tool: https://support.microsoft.com/en-us/topic/use-the-system-file-checker-tool-to-repair-missing-or-corrupted-system-files-79aa86cb-ca52-166a-92a3-966e85d4094e

There is more to it than just running sfc /scannow

...jim

The peculiar thing about this stuttering problem, which for me started after World Update 6, is that it happens only on the ground, on takeoffs and landings. Once in flight, it is absolutely smooth with FPS locked at 60 and no stutters. It is very hard to believe that this could be a Windows issue -- discriminating between ground and air? Moreover, if there is a problem with Win 10, why would it affect only MSFS, and then only in this very specific way? I don't buy that. But I (and imagine many others) am open to suggestions.

Same here.. two flights so far after the update and I get stutters on the ground (where I never had them).  Basically, I get continuous jerks and pauses while taxiing.  Now, when I push in the throttle and make my takeoff run - no more stutters.  Smooth in the air also.

I too am suffering an identical experience. I love WU6. It looks wonderful and the performance is outstanding -- except on the ground at certain airports. I landed a few minutes ago in Frankfurt, Germany. The entire flight was completely smooth. The landing, however, caused repeated stuttering on the ground that didn't occur until WU6.

Do you think deleting the WU6 content in the Content Manager would help the stutters on the ground?

Gentlemen, I have located the problem. It's the photogrammetry. Turn it off, and the ground-stutters disappear! This makes sense because the improved photogrammetry, which now makes things look so much better near ground level, evidently impacts performance on the ground, even in non-photogrammetry areas. So for now, my work-around is to start a flight with photogrammetry off, and then turn it on if I am flying in a photogrammetry area (otherwise no need).

I expect this can and will be fixed with a patch at some point. But at least we know what's causing it.

Edited September 9, 20214 yr by cobalt

4 minutes ago, cobalt said:

Gentlemen, I have located the problem. It's the photogrammetry. Turn it off, and the ground-stutters disappear! This makes sense because the improved photogrammetry, which now makes things look so much better near ground level, evidently impacts performance on the ground, even in non-photogrammetry areas. So for now, my work-around is to start a flight with photogrammetry off, and then turn it on if I am flying in a photogrammetry area (otherwise no need).

I expect this can and will be fixed with a patch at some point. But at least we know what's causing it.

Awesome, thanks!  I will give this a try tonight after work.

Best Regards,

John

23 minutes ago, cobalt said:

Gentlemen, I have located the problem. It's the photogrammetry. Turn it off, and the ground-stutters disappear! This makes sense because the improved photogrammetry, which now makes things look so much better near ground level, evidently impacts performance on the ground, even in non-photogrammetry areas. So for now, my work-around is to start a flight with photogrammetry off, and then turn it on if I am flying in a photogrammetry area (otherwise no need).

I expect this can and will be fixed with a patch at some point. But at least we know what's causing it.

Interesting find. If that's truly the case, would suggest posting on the official forums and opening a ticket

Poor performance on the ground - Bugs & Issues / Install, Performance & Graphics - Microsoft Flight Simulator Forums

Also wanted to ask whether you've deleted / refreshed any rolling / static cache - that seemed to cause issues with PG and mesh too.

Thanks for the link -- will do. I have never used rolling cache, so for me that was not an issue. Update: I just checked the Bugs & Issues forum and discovered that others have come to the same conclusion: it's the photogrammetry. I am sure this will be fixed soon.

Edited September 9, 20214 yr by cobalt

1 hour ago, cobalt said:

Gentlemen, I have located the problem. It's the photogrammetry. Turn it off, and the ground-stutters disappear! This makes sense because the improved photogrammetry, which now makes things look so much better near ground level, evidently impacts performance on the ground, even in non-photogrammetry areas. So for now, my work-around is to start a flight with photogrammetry off, and then turn it on if I am flying in a photogrammetry area (otherwise no need).

I expect this can and will be fixed with a patch at some point. But at least we know what's causing it.

Excellent find.  That explains why I haven't seen the problem myself.  I only turn photogrammetry on occasionally, and I haven't tried it in quite a while.

21 hours ago, Ixoye said:

Yes it was, but I had a power failure during the update of the patch, probably some system file in Windows was damaged, I can not think of any other explanation, now everything works as it should again.

Your power failure are frequent, if so then I advise you to invest in a mini inverter.
That will save you a lot of trouble. 

4 hours ago, cobalt said:

Gentlemen, I have located the problem. It's the photogrammetry. Turn it off, and the ground-stutters disappear! This makes sense because the improved photogrammetry, which now makes things look so much better near ground level, evidently impacts performance on the ground, even in non-photogrammetry areas. So for now, my work-around is to start a flight with photogrammetry off, and then turn it on if I am flying in a photogrammetry area (otherwise no need).

I expect this can and will be fixed with a patch at some point. But at least we know what's causing it.

The strange thing is that I had violent stutter even though I turned off all online activity and photogrammetry before I reinstalled my computer, even at lowest graphical settings, so the problem was probably something else for me, because now I can pan around at full speed in external view without a hint of stutter, and that with everything at ultra.

Edited September 9, 20214 yr by Ixoye

I would turn off or reduce ground traffic slider and see if the stutter goes away

Same here.Not even playable on the ground. Once in the air above 300 ft frame rate jumps to 60 plus. NVIDIA RTX 2060 Super.