The Infamous D3D Device Lost Crash

Hi Epic,

Since today I am getting D3D device lost crashes on any of my 4.15.1 projects.
Both the engine compiled from source as well as new projects through launcher.

Both log attached are from two new test projects.
thirdperson, add a landscape.
To put some pressure on the GPU I added the LAM from marketplace to it.
Up till here both projects start up fine.

when enabling depth fields under lighting section in project settings and restarting the editor, it crashes and will continue to crash any time I try to open the project.
Our code version also has depth fields activated due to dynamic lighting and also crashes on startup of the editor.

Is there a way to disable the depth fields so I can test if they are the cause at this time?

Log files project 1

Log files project 2