[Fixed][4.26] LogD3D11RHI CreateSwapChainForHwnd failed with DXGI_ERROR_INVALID_CALL 0x887A0001

General Feedback & Requests
1

Hi all,

Yesterday I updated my Win10 Enterprise to version 20H2 (October 2020 Update), now I noticied that using 4.26 (release, installed from launcher) with Default RHI > Default, everytime that I right click something the Output Log add this line:

LogD3D11RHI: CreateSwapChainForHwnd failed with result ‘DXGI_ERROR_INVALID_CALL’ (0x887A0001), falling back to legacy CreateSwapChain.

Is not an error exactly and everything still works, but it’s a wierd message and I’m sure it didn’t happen before… I couldn’t find any topic about this, so perhaps it’s something new from this Windows version.

If I change the Default RHI to DirectX12 everything works fine and the message didn’t show up.

Thanks

2

Hi, I update to UE4.26.1 and lastest NVidia Drivers, the message still exists.

Video sample:

3

Fixed by uninstalling Intel VTune Profiler.

4

Hi There,

I get the same log error - not sure its related to Intel VTune Profiller though as I do not have this installed on my system. I wonder if its related to a plugin? Will reply back if I figure it out.