I’m pretty sure its not drivers. I’ve gone through a variety of different engine ( v5 ) and drivers versions, and it persists.
I’m wondering if its something to do with texture caching. I tried turning off Oodle, but it still happens.
The hitch is quite remarkable. We’re talking about 2 seconds of the engine not even responding to the mouse, and then suddenly it does again. And some objects will be black.
Looking in the content browser show the textures as black squares. Right-clicking and choosing asset-reload fixes it. But this happens to about 10-20 textures per week. Sometimes they silently go black and sometimes you get the hitch.