API & Simconnect crashes

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I have been having random crashes in P3D lately. Most of them happen 2-3 hours in the sim. Here is the details of the most recent crash.

Fault bucket 1457324829, type 410860831
Event Name: APPCRASH
Response: Not available
Cab Id: 0

Problem signature:
P1: utl_client.exe
P3: 5a328b14
P4: SimConnect.dll
P5: 10.0.61637.0
P6: 46fad5b6
P7: c0000005
P8: 00001fe4

Attached files:

These files may be available here:

Analysis symbol: 
Rechecking for solution: 0
Report Id: 9139f40f-33fe-11e9-9648-f46d049b80c4
Report Status: 0


Faulting application name: Prepar3D.exe, version:, time stamp: 0x5b2c3263
Faulting module name: api.dll, version:, time stamp: 0x5b2c32fc
Exception code: 0xc0000005
Fault offset: 0x0000000000015591
Faulting process id: 0xab0
Faulting application start time: 0x01d4c804d2f6131f
Faulting application path: C:\Program Files\Lockheed Martin\Prepar3D v4\Prepar3D.exe
Faulting module path: C:\Program Files\Lockheed Martin\Prepar3D v4\api.dll
Report Id: 9b274c25-33fe-11e9-9648-f46d049b80c4

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This looks like a SimConnect problem that UTL is encountering. It could be trying to invoke a faulty AI aircraft model. Just in case can you re-run the SimConneect setup manually by double clicking the ..msi's

C:\Program Files\Lockheed Martin\Prepar3D v4\redist\Interface\FSX-SP1\retail\lib\SimConnect.msi

C:\Program Files\Lockheed Martin\Prepar3D v4\redist\Interface\FSX-SP2-XPACK\retail\lib\SimConnect.msi

This ensures the library is correctly identified by all parties.

Then have a think if you installed something that might cause an issue when injecting AI traffic. It could be other things but that's a start.

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Ok thanks. I also had an outdated SDK installed from P3D v4.3 which I have since updated to 4.4

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OK worth doing! It's possible that can be an issue.

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I would update to P3DV4.4 too.  It's free.

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