I am using Unreal 4.9.2 (from unreal launcher not Github) and recently my material editor is not appearing at all. There are two unreal windows showing in the toolbar and when I hover over them it shows the main window and a blank white window with the unreal logo but that window refuses to open no matter what I do. It is the same no matter what material I try to open. Unreal doesn’t crash I just can’t edit any materials, closing and reopening doesn’t help nor does restarting the PC.
I am using windows 10 and have updated both my graphics drivers and Windows to the latest version whilst attempting to solve the issue to no avail.
I created a blank project in version 4.10.1. to see if the problem carried over and it didn’t appear to, the material editor opened fine.