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Fixed in 2021.1.X



Found in


Issue ID




Editor crashes on RtlWaitOnAddress on switching between different Graphics APIs

Graphics Device Features


Editor crashes on RtlWaitOnAddress on switching between different Graphics APIs.

Steps to repro:
1. Create a new project.
2. Edit > Project Settings > Player.
3. Other Settings > Uncheck "Auto Graphics API for Window" checkbox.
4. Add Direct3D12 > Drag to the top of the list > Restart.
5. Drag Direct3D11 to the top of the list > Restart.
6. Repeat step 4 & 5.

Actual Result:
Editor crashes on RtlWaitOnAddress when graphics API changes

Expected Result:
No crash occurs on changing Graphics APIs.

Reproducible in:

Working Fine in:
2021.1.0a1, 2020.2.0b9, 2020.1.10f1.

Occurring only on Windows 10.

========== OUTPUTTING STACK TRACE ==================

0x00007FFC296F5E16 (ntdll) RtlWaitOnAddress
0x00007FFC296D15B4 (ntdll) RtlEnterCriticalSection
0x00007FFC296D13E2 (ntdll) RtlEnterCriticalSection
0x00007FF6A3B762EF (Unity) core::mutable_function<void __cdecl(void)>::DispatchT<<lambda_85f6437ef1176c9b5d956837405f3588> >::Dispatch
0x00007FF6A3B5E86E (Unity) asio::asio_handler_invoke<asio::detail::binder1<<lambda_49326903f0231fd4ce224a84b8f0cded>,std::error_code> >
0x00007FF6A3B6C84D (Unity) asio::detail::wait_handler<<lambda_49326903f0231fd4ce224a84b8f0cded> >::do_complete
0x00007FF6A3B6DEF0 (Unity) asio::detail::win_iocp_io_service::do_one
0x00007FF6A3B715DE (Unity) asio::io_service::run
0x00007FF6A3B6AC9B (Unity) IOService::Impl::ThreadFunction
0x00007FF6A2FA03C5 (Unity) Thread::RunThreadWrapper
0x00007FFC28577034 (KERNEL32) BaseThreadInitThunk
0x00007FFC296FCEC1 (ntdll) RtlUserThreadStart

========== END OF STACKTRACE ===========

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