MSFS 2024 freezes for 1–10 minutes when loading a flight, audio continues, and FPS drops severely on the second flight
Platform: PC — Microsoft Store / Xbox app
Operating system: Windows 11 Home 64-bit
Issue category: Freezes / performance degradation / possible deadlock
Version: Sim Update 07 1.9.18
Issue description
Since a recent Microsoft Flight Simulator 2024 update, I have been experiencing reproducible freezes when loading flights. The behaviour is different on the first and subsequent flights within the same simulator session.
The simulator does not immediately crash to desktop. Instead, the image freezes while the aircraft’s audio continues playing normally.
First flight after launching the simulator
When I load the first flight, the screen freezes for approximately one minute, sometimes longer, almost immediately after the flight starts.
Although the image is completely frozen, the audio continues. For example, when starting the Cirrus, I can still hear the normal engine-start sequence and its three beeps while the screen remains frozen.
After approximately one minute, the simulator becomes responsive again. I can then fly normally, change views, and even complete landings at several airports.
Second flight in the same simulator session
The problem becomes much more severe when I end the first flight and select another flight. This also happens when selecting the same aircraft again, so it does not appear to be limited to switching aircraft.
The screen can remain frozen for approximately 10 minutes before the simulator becomes responsive again.
When it finally recovers, performance is severely degraded, with very low FPS and substantial stuttering. I stopped flying in this condition because performance was too poor.
Restarting the simulator
If I completely close MSFS 2024 and launch it again, the first flight returns to the previous behaviour: an initial freeze lasting approximately one minute, followed by relatively normal performance.
In other words, restarting the simulator allows me to fly one flight reasonably well, but loading a second flight in the same session causes a much longer freeze and severe performance degradation.
Troubleshooting already performed
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Repeated the tests across multiple flights.
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Tested with the same aircraft on successive flights.
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Renamed the FlyByWire and PMS50 folders to disable those add-ons during testing.
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Confirmed that the issue still needs to be investigated with third-party add-ons disabled; I have not established that Marketplace aircraft are responsible.
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No external traffic-injection application was running during the affected flights.
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I have not changed my BIOS or GPU configuration as part of this investigation.
I own several Marketplace aircraft, including the iniBuilds A380, but I was not using the A380 during these tests. I do not know whether any Marketplace content is related to the issue.
Changing views can also produce stuttering, although I am not certain whether this is a separate issue or related to my DLSS Balanced and frame-generation settings.
Asobo report
The simulator’s report contains the following information:
Where="HangDetector"
Code=0xC0000194
This appears consistent with a possible deadlock or hang, but I cannot determine the underlying cause from the report alone.
I will attach the relevant Asobo report generated by the simulator so that the development team and other users can examine the full diagnostic information.
PC specifications
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CPU: Intel Core i7-14700KF
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GPU: MSI NVIDIA GeForce RTX 5070 12 GB
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RAM: 32 GB DDR5
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Motherboard: MSI MAG Z790 TOMAHAWK MAX WIFI
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Operating system: Windows 11 Home 64-bit
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Simulator: Microsoft Flight Simulator 2024, Microsoft Store / Xbox app
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Resolution: 3840 × 2160 (4K)
Questions for other users
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Does anyone experience a similar freeze when loading the first flight, followed by a much longer freeze when loading the second flight?
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Does the simulator’s audio continue playing while the screen is frozen?
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After the second freeze, do you also experience very low FPS and severe stuttering?
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Does completely restarting the simulator temporarily restore normal performance for the first flight?
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Has anyone found a confirmed workaround or identified a connection with a recent simulator update?
I would appreciate it if other users experiencing the same behaviour could share their simulator version, hardware specifications, and Asobo report details.
I am trying to establish whether this is a wider MSFS 2024 regression rather than an issue specific to my PC.
Thank you.