Just now, wim123 said:

i am afraid this can and will happen at times..the joys of online gaming i call it.

Maybe you're right but for me this only happened after SU11 and it has only happened twice with lots of good flights between last week and today.

3 minutes ago, Cpt_Piett said:

Haha, true! Just checked right now and I got 108ms

Is your fps dropping as your server ping has increased?

27 minutes ago, RJC68 said:

Is your fps dropping as your server ping has increased?

Not that I've noticed. I've only had one flight in the last few weeks where the main thread went absolutely crazy. That was in the A310, and fps fell to sub-10 on final approach. Not sure what happened there. Usually I don't get any fps drop on 1-2 hr flights. I rarely fly longer flights than that. 

So, after a lengthy discussion with an Asobo developer and FPS loss or CTD's I got a pretty snarky response.

All of us can attest that mods/apps of any kind can cause a CTD or FPS loss. Or can it? Even when I completely reinstalled Windows 10 one of the first programs I installed with MS (along with Steam and Elite:Dangerous, of course). But I still had a CTD or some issue with FPS degradation when flying in MS.

Obviously, this person from Asobo didn't care and I was brushed off. This FPS loss (or CTD's) can happen with or without any third-party scenery, apps, planes, programs etc.

Here is the response I received:

"I will not continue to have this debate back and forth. I have told you repeatedly that the fault you are receiving Faulting module name: FlightSimulator.exe is due to a conflict with third party software and I have advised you to revert the sim to a vanilla state (uninstall DLC, uninstall mods, uninstall third party apps, clean install of MSFS2020 if needed) and you have now replied back SEVEN times arguing the point. Your friend's issues have no correlation to your issue. If your friend gets crashes have him contact us and we can troubleshoot his issue specifically. If you are unwilling to perform the troubleshooting advised to you then I will close this request. "

My initial Zendesk report stated that I had mods in the sim. I have since deleted all of them, or moved them completely out of the community folder. Deleted everything else, even Navigraph and the charts. Still had a CTD and FPS loss after a few hours of flight. Tried online data on/off and on again.

Now I have all my mods in place and don't have any issues so far. Go figure.

Long story short, its Asobo...not you or your settings. Could be a mod but at this point, its Asobo that isn't playing well with anything else.

21 hours ago, Sonosusto said:

So, after a lengthy discussion with an Asobo developer and FPS loss or CTD's I got a pretty snarky response.

All of us can attest that mods/apps of any kind can cause a CTD or FPS loss. Or can it? Even when I completely reinstalled Windows 10 one of the first programs I installed with MS (along with Steam and Elite:Dangerous, of course). But I still had a CTD or some issue with FPS degradation when flying in MS.

Obviously, this person from Asobo didn't care and I was brushed off. This FPS loss (or CTD's) can happen with or without any third-party scenery, apps, planes, programs etc.

Here is the response I received:

"I will not continue to have this debate back and forth. I have told you repeatedly that the fault you are receiving Faulting module name: FlightSimulator.exe is due to a conflict with third party software and I have advised you to revert the sim to a vanilla state (uninstall DLC, uninstall mods, uninstall third party apps, clean install of MSFS2020 if needed) and you have now replied back SEVEN times arguing the point. Your friend's issues have no correlation to your issue. If your friend gets crashes have him contact us and we can troubleshoot his issue specifically. If you are unwilling to perform the troubleshooting advised to you then I will close this request. "

My initial Zendesk report stated that I had mods in the sim. I have since deleted all of them, or moved them completely out of the community folder. Deleted everything else, even Navigraph and the charts. Still had a CTD and FPS loss after a few hours of flight. Tried online data on/off and on again.

Now I have all my mods in place and don't have any issues so far. Go figure.

Long story short, its Asobo...not you or your settings. Could be a mod but at this point, its Asobo that isn't playing well with anything else.

Interesting response,

I tried the Fenix again this morning and after approx 2 hours my RAM usage is up at 14GB and my main thread is sitting at 30ms 

I wonder if this is a memory leak with the Fenix, I had zero issues with the PMDG yesterday on all 3 flights 

I am curious if anyone else is having these issues specifically with the Fenix?

Edited December 13, 20223 yr by RJC68

9 hours ago, RJC68 said:

Interesting response,

I tried the Fenix again this morning and after approx 2 hours my RAM usage is up at 14GB and my main thread is sitting at 30ms 

I wonder if this is a memory leak with the Fenix, I had zero issues with the PMDG yesterday on all 3 flights 

I am curious if anyone else is having these issues specifically with the Fenix?

I have had similar issues with the PMDG 737-700, Honda Jet and even the default Baron at one point. This is not central to the Fenix or any higher fidelity plane, in my opinion. Some have no problems whatsoever.

I really think using addon linker to disable every mod you're not using (except for the few airports you will be departing/landing at) can help single things out. Then again, this happened to me in the default Baron after a complete windows and msfs reinstall. I had to reinstall windows due to a completely separate issue. Reinstalling windows or msfs does very little, unfortunately.

9 hours ago, RJC68 said:

I wonder if this is a memory leak with the Fenix

I don't think it'd be the Fenix. I did a bunch of consecutive flights (5 in a row of varying lengths from 50 minutes to 3 hours long) with the Fenix, without restarting the sim or going back into the main menu...continued each flight without interruption. No performance degradation over time. I did disable GAIST, We Love VFR, and the Solar Farms & Power Lines, dunno if that made any difference at all though.

14 hours ago, RJC68 said:

I wonder if this is a memory leak with the Fenix, I had zero issues with the PMDG yesterday on all 3 flights 

I am curious if anyone else is having these issues specifically with the Fenix?

I don't fly the Fenix but have had the issue as well, with different aircraft. Lately I had it with the Analogue King Air and the DHC-2 beaver, both aircraft are very different from each other, the only thing they have in common is MSFS I guess.

But the last time I checked there was no increase in RAM usage when the framerates plummeted. GPU was almost idle and CPU was at ~12 %, but 4 cores had spikes to 100% but IIRC that is not different from normal behaviour.

There is definitely something fishy going on here,

I gave up on the flight in the Fenix yesterday morning and did another 2.5 hour flight in the A310 with zero issues then recreated the same flight in the Fenix yesterday evening and no issues. This is similar behavior to what I saw last week. I ended up going from 60 fps yesterday morning to 35 fps with main thread at 32ms within 2 hours. When I looked at the CPU usage on my 12700K it didn't seem to correlate with what I am seeing in the sim. I wasn't seeing any of the cores being hammered. 

Maybe I just won't fly in the mornings anymore 🤣 I have always had great performance especially since I built my PC back in August. I use Addons Linker to only enable what I need for each flight and have done this for a long time and I do not have any complex scenery just FlyTampa CYYZ and if I am not flying in that area it is disabled. I don't think this issue is on any of our ends so I am not going to waste hours on this, I leave for a 2 week trip in a few days so hopefully things will get fixed by the New Year or next Sim update.

Merry Christmas & a Happy New Year to all my fellow simmers

On 12/13/2022 at 6:46 PM, RJC68 said:

Interesting response,

I tried the Fenix again this morning and after approx 2 hours my RAM usage is up at 14GB and my main thread is sitting at 30ms 

I wonder if this is a memory leak with the Fenix, I had zero issues with the PMDG yesterday on all 3 flights 

I am curious if anyone else is having these issues specifically with the Fenix?

Yep. Flew from SFO to Palm Springs in the Fenix on Sunday. 30-35 for most of the flight, dropped to 10-15 on the approach. Resource monitoring showed GPU utilisation dropped when the frames tanked. 

Edited December 14, 20223 yr by gb09f

On 12/11/2022 at 6:26 PM, orchestra_nl said:

Having the same issue of a huge fps drop after a few hours of flying I did some testing today.
Important to note perhaps is I am in the MSFS beta.

Besides lots of scenery and all WU., I had FSLTL traffic (IFR=6-, VFR=10, inj. radius 150), using a more or less complete AIG set of liveries. On top of that I had the default GA traffic active
Also Henrik Nielsen's GAIS was running as well as Mamudesign marinas.

I flew three times the same route (MMUN-MUSN) with the DHC-2.

My experience:

The first time I started out with ~90 fps. When I came back later I noticed the fps had dropped to 7-12 fps. I aborted this flight.

The 2nd time I disabled FSLTL, all AIG liveries, GAIS and the marinas addon, figuring they were the most likely cause of the issue.
However, the results were the same. After ~2 hours, the FPS had dropped to single digits. Unfortunately I did not notice exactly when it happened nor whether it was sudden or gradually.

The third time I enabled all of the above addons again but deleted the scenery indexes and deleted and disabled the rolling cache.
This time the FPS more or less stayed the same. Off course they went down when I came neared to land but they stayed at 50-60 or so.

I don't know exactly what to make of these results. In my situation at least it seems the rolling cache might be the cause of the issues. 
A lot more testing seems to be necessary to get to the bottom of this. 

Thank you for sharing your tests. I have done similar ones with almost the same results. It seems that third-party add-ons may not be the culprit here.

Additionally, I tried the save/load function when the FPS gradually dropped from 60 to 30 over the course of the flight. After the flight was loaded, the FPS immediately went back to the 60s. Of course this is not a solution, but perhaps it can help identify the cause. But I myself have no idea how.

Edit: this was on DX12. Next time I'll try DX11.

Edited December 14, 20223 yr by Ohmsquare

I also has a massive frame drop recently. I suspected fstl traffic so I disabled it and changed back from dx12 to dx11. No problems since.