UE 5.1.1 nDisplay + Switchboard shaders problem, and black screen. Bug?

Hi, I have some problems with nDisplay in UE 5.1.1. Each time I start nDisplay from Switchboard I don’t have any compiled shaders, and it looks like UE recompiles all of them, because if I wait some time all shaders become normal. I tested it on different scenes, and it happens even in the “Third Person” template project. You can see it in the attached image. Also, I have a problem with “Black Screen” when I’m trying to start the packaged game with nDisplay using the CMD command. It just shows me black screen, no matter how long I wait. I didn’t have such problems in UE 5.0, 4.27, and 4.26. Does anyone know why it happens and can help me to find the solution? Or this is just UE 5.1 bug and I should not use this UE version right now?

The same problem with “NDisplay” template project, without any changes from my side