Dutch60

FSUIPC7 7.5.3 and likely other external apps using SimConnect and crashing FS24 SU3 1.5.10.0 are solved in FS24 SU3 1.5.12.0 It was even mentioned in the release notes! For now I a happy simmer again.

I don't mind being a Beta or Alpha tester I know that this means yes you will run into bugs and crashes. But I actually want to support the Asobo and Microsoft teams in making the best simulator, for me it's actually part of the hobby. The last two beta (alpha) versions where very troublesome. With version 1.5.9.0 I ran into crashes when getting in the cockpit all FS20 aircraft also the official ones that come with the sim and some of the 3rd party FS24 aircraft. But there was no mention in the release notes of 1.5.9.0 that can explain that you can get crashes getting into aircraft. With version 1.5.10.0 we ran into FSUIPC and many other external apps crashing the simulator. Again there was no mention in the release notes of 1.5.10.0 that could explain changes that are causing these crashes. I get it we are beta testing the sim but as a former developer I'm starting to wander what is going on behand the seen. It seems we are not getting the full version of the release notes I think there are way more changes and bugfixes happening. This can eventually result in code that gets more and more difficult to maintain and les reliable. It the old days we would just call this spaghetti code but let pray I am totally wrong. So it's a good thing the teams are not at the Flight Sim Expo 2025 and I agree this says a lot.

Great testing and I totally agree that it's very likely a SimConnect is the issue. A lot if external apps seem to result in CTD. Let's see and wait what SU3 1.5.11.0 will bring us.

I used to be a Microsoft business software developer and in the FSX day I wrote a small app using SimConnect and FSUIPC but that definitely does not make me an expert on developing something for SimConnect. What aircraft or anything else that I own would you like me to see if it works in FS24 SU3 1.5.10.0? I own the Aviator Edition and a lot of Carenado and Just Flight GA aircraft but I don't have any 3rd party big birds.

I tried something bigger than GA ''A320neo from EHAM Schiphol" (no FSUIPC) and it worked just fine no crashes with settings at Ultra and at 4K.

Good to see I'm not the only one affected by PCFUIPC crashing FS24 SU3 1.5.10.0 Let's hope Asobo can fix this a.s.a.p.

Ok thanks for the investigation I just have to accept it's Asobo is messing things up again! Up until now I never ran into major problems with the stable and beta version but the last two SU3 betas are a true ....show. Kind regards Hans.

As I have been using FSUIPC forever I know you are a very experienced developer! I don't know if you use C++ or C# but this is some example code where things go wrong. SimConnect Dispatch C++.txt SimConnect Dispatch C#.txt

First Test Part of the logfile where things seem to go wrong 144531 User Aircraft ID not supplied -- trying default 144531 Requesting keyboard input... 144531 Requesting user aircraft data... 149812 Failed on SimConnect_CallDispatch for Message, return = 0xC000014B 149812 Failed on SimConnect_CallDispatch for Traffic Message, return = 0xC000014B 149812 Failed on SimConnect_CallDispatch for Traffic Message, return = 0xC000014B 151062 MSFS no longer running - trying to find... 151062 === Calling SimConnect_Close ... 151281 === SimConnect_Close done! FSUIPC7 Test 1.log Second Test Removing FSUIPC7_WASM.wasm Removing events.txt and myevents.txt Stripping the PCUIPC7.ini file of all aircraft specific entries. Did not fix the problem. Part of the logfile where things seem to go wrong 4203 User Aircraft ID 39124992 supplied, now being used (myftm=1) 4203 Requesting keyboard input... 4203 Requesting user aircraft data... 4297 Aircraft loaded: running normally now ... 4797 System time = 26/06/2025 11:53:28, Simulator time = 09:53:28 (00:00Z) 5125 Failed on SimConnect_CallDispatch for Message, return = 0xC000014B 5125 Failed on SimConnect_CallDispatch for Traffic Message, return = 0xC000014B 5578 MSFS no longer running - trying to find... 5578 === Calling SimConnect_Close ... 5797 === SimConnect_Close done! FSUIPC7 Test 2.log Regards Hans

Ok clear thanks

Other SimConnect apps I use are: Virtual Fly HUB for my Virtual Fly controllers. Octavi IFR-1 for my Octavi autopilot. FSRealistic Auto-FPS Beyond ATC FlyByWire FSLTL ...

The main problems where with SU3 beta 1.5.9.0 and entering the cockpit where all official FS20 and some FS24 where crashing the Sim. FSUIPC7 was working fine in SU3 beta 1.5.9.0 These problems are now fixed in SU3 beta 1.5.10 PCUIPC7 is the only SimConnect app (I have) that is crashing the Sim in SU3 beta 1.5.10.0. Regards Hans.

I know that SU3 is still in beta but I never had any problems with FSUIPC7 in any stable or beta versions. On the official forums the problem has also started buzzing sinds the release of SU3 1.5.10 yesterday. There is no mention of any updates in the beta that affect the SDK and SimConnect. That's why I'm confused on to why FSUIPC7 does directly crashes the Sim when it connects in anyway with SimConnect. No other utility that I have and uses the SDK or SimConnect crashes the Sim. As I was a software developer for many year (Microsoft business software) I will fully respect that you can't fix this asap so please take the time to fix it. I just wanted make you aware of this problem for future releases. Regards Hans.

Logfile! FSUIPC7.log

FSUIPC7 7.5.3 Crashes FS2024 SU3 beta 1.5.10.0 When starting with sim in EXE.xml When starting after sim is already running in the menu When starting in cockpit crashes the sim directly It does not crash FSUIPC7