Hi @comlys ,I can’t provide you the repo as I have no access to public net but I will provide as many informations as possible. First a pic of Unreal Insights trace is as follows:
- The Game Thread is stucked getting the MRQ preview texture;
- The Render Thread is also stucked;
- The Task System Foreground Worker Thread is stucked submitting virtual texture requests.
The infinity part of the trace file will not show up until I kill the editor process in task manager.
It seems when using offscreen rendering with MRQ will fix this issues.
And in the log files, there will be GPU timeout warning right before editor got stuck. An example will be:
“LogD3D12RHI: Warning: GPU timeout: A payload (0x**********) on the [0x********, Compute] has not complete after X seconds.”