I stumbled upon this thread, and then found a fix that worked for me on a reddit thread:
https://www.reddit.com/r/unrealengin…to_allocate_a/
changing the paging file size as described in this link to a size the same as my graphics card’s video memory fixed this issue for me:
https://www.thewindowsclub.com/incre…memory-windows
Thought I’d post back here in case it helps someone else sincce it looks like i’ve been unecessarily living with this issue for the last year.
Mine was set to 3g. Setting it to 8 to match my 1080’s texture memory fixed me up.
It appears in my case at least unreal was mis-reported as out of video memory when it’s actually running out of paging memory or something to that effect.