As you asked for ideas: I had trouble with these "umbrella libs" when I run Windows 7. Umbrella libs: https://learn.microsoft.com/en-us/archive/msdn-technet-forums/a28331ae-19a3-4a34-b3ba-1e8fd4430375 https://learn.microsoft.com/en-us/windows/win32/apiindex/windows-umbrella-libraries As fa...

Your Windows knows about UTC ?
https://fishilico.github.io/generic-con ... clock.html
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation]
"RealTimeIsUniversal"=dword:00000001

And 1 hour may result from a hidden daylight saving time in Windows.

In addition: Read the FSUIPC PDF documentation, it's in the modules folder. As I remember, the advanced user guide contains the P3D offsets as not everything can be done by LVAR. LVARs are mostly used by addon aircraft to implement their own functions. Many basic functions can be controlled by "...

FSUIPC 5 but I assume this should work in newer versions https://fsxtimes.wordpress.com/2019/12/30/551-finding-aircraft-local-variables/ In short: assign a button to FSUIPC Control "List Local Panel Vars". Sitting in the aircraft, press the assigned button and you get a dump of the known L...

What I can recommend (my RTX 2070 Super is comparable to your GTX 1080 TI): * RTSS ("Riva Tuner") to limit FPS to 30 (no frame limiting by P3D 4.5 but VSYNC set to on) * P3D 4.5 4 x MSAA and Nvidia Inspector: 4 x MSAA + 4 x SGSSAA (Sparse Grid Supersampling) * G-Sync capable monitor (mine ...

This one ?
https://www.prepar3d.com/SDKv4/prepar3d ... ation.html

The OP had mentioned: "The OEM stripped down version of the F-35 in V5.3 works fine." As far as I understand, the OP compared the P3D included F35 ("stripped down") with the payware IFE F35. Maybe I misunderstood ? If not, I assume the nonworking F35 is the former payware, now f...

As my former reply vanished, I would try it more seriously. First of all, we have to find out what it means: Anyway... I installed the IFE F-35 in all three versions. It works fine in V3.4. In V4.5, the F-35 works great... Does it mean " I installed the IFE F-35 in all its three [IFE F35] versi...

I run P3D 4.5 and things may have changed in V5/V6, but... the more addons you have, the more content errors appear. If you don't have a real problem, don't activate the content error logging - or live with these messages. The target of this log can be found in https://www.prepar3d.com/SDKv5/sdk/con...

Do you have the IFE F-35 installed? No, sorry. But according to http://indiafoxtecho.blogspot.com/ the package is available for free and simmarket offers it for 0 $, so it seems to me, it could be easily ordered and downloaded to compare the files. Or maybe a version number is contained somewhere i...

I have IFE F-35's in P3D4.5HF3 (4.5.14.34698) No CTD. No problems with the F-35's, TacPack or the afterburner. @Martyson: maybe you have downloaded a newer version ? At simmarket, I find a F-35 LIGHTNING II PACKAGE P3D Version 3.50 update from July 30th 2018. If @brettt777 talks about an older FSX ...

Hahaha, eagle eyes.
Time for "Fast & Furious" ?

Some background information for V5: https://www.prepar3d.com/forum/viewtopic.php?t=137087 Re: v5 Affinity Mask changed behavior? by Beau Hollis » Mon Apr 20, 2020 5:39 am To get an accurate test, you should be flying fast or slewing. The primary core is always working , as are two additional cores s...

This one https://www.carenado.com/sitecarenado/p ... c-fsx-p3d/ ?
Features
Alabeo GNS430 and GNS530
Full FSX, P3D v2, v3, v4, and Steam compatible.

Just my thoughts:
either it doesn't support V5
or it doesn't accept P3D flight plans at all (as other addon FMS, GNS)

https://geekflare.com/windows-power-options/ Section "Minimum/Maximum processor state" Don't know if it helps on your processor and Win 11. I made a separate energy savings profile for my old 4790K with "Minimum processor state : 70%", so the clock doesn't fall below 2800 MHz. Wo...