I’m having the same issue and nothing has fixed it (including deleting the Intermediate and Saved folders). None of map maps BuildData are actually over a few hundred megs with the exception of my largest map whose BuildData file is 1.24gb so still under the 2gb memory limit. I’m also trying to figure out if there’s a way of knowing which map is the problem? I was assuming it was the default map, but this might not be the case.
Any help would be appreciated, I’m trying to have my build ready next weekend.