I upgraded my rig to an rtx 2060 graphics card. Whenever im in playmode, everything looks fine. But in edit mode, the materials are missing colors and details. i cant add the pictures because theyre too big but heres a link to the unre answers post which hasthem
https://answers.unrealengine.com/questions/913299/view.html
Uninstall your Nvidia drivers and install the latest one for your GPU.
I tried that already, didnt fix anything