Dev builds render black

[otatop]

The 5.0 stable build will launch and render a game but the dev builds I've tried just render a black screen in the window. Tried with 5.0-910-x64 & 5.0-11428-x64 on win 10. Tried different graphics backends but alll have the same effect.

My laptop - https://www.walmart.com/ip/Legion-By-Lenovo-Y545-15-6-Gaming-Laptop-Intel-Core-i7-9750H-Nvidia-GeForce-RTX-2060-6GB-Graphics-16GB-RAM-512GB-PCIe-SSD-81Q6000QUS/560161624