Exiting GUI always crashes on Windows

[Sploder12]

Describe the bug
When closing the GUI process on Windows, it always crashes.

To Reproduce

1. Run the GUI
2. Close the GUI

Expected behavior
The GUI doesn't crash

Logs

Faulting application name: multipass.gui.exe, version: 1.15.0.0, time stamp: 0x674dfb46
Faulting module name: flutter_windows.dll, version: 0.0.0.0, time stamp: 0x66e1eff3
Exception code: 0xc0000005
Fault offset: 0x000000000001d9f0
Faulting process id: 0x18bc
Faulting application start time: 0x01db45c0e4001f10
Faulting application path: C:\Program Files\Multipass\bin\multipass.gui.exe
Faulting module path: C:\Program Files\Multipass\bin\flutter_windows.dll
Report Id: 740f9a4e-af41-4eb6-a881-a9a6080de9b7
Faulting package full name: 
Faulting package-relative application ID: 

Additional info

• OS: Windows 10

Driver does not make a difference.
The "stop running instances" dialogue box behaves normally.
The only noticeable difference is an error message in logs. (but it is possible that some cleanup is incomplete)