I’m randomly getting an odd crash around 10 times a day in FD3D11DynamicRHI::RHISetStreamSource() … See attached.
It most often occurs when opening a new map in the editor.
Hi Mothership
We have an error just like this, that prevents up from updating to 4.9.
If you find the reason or solution to this error please share it with us 
On our side, deleting the Intermediate folder does fix the problem (at least for a while)