Has anyone had issues with lightmaps during project migration? I just migrated a project from 4.14 to 4.15 and when rebuilding lighting in the new project, all of my lightmaps seem to be overlapping in assets that previously never had any issues. This makes me think that either a) index wasn’t retained, or b) resolution was retained, but both of these seem fine. can’t think of what else to look at when troubleshooting this.
We’ve had this issue too- we’re using auto-generate lightmap coordinates when merging actors though, so assumed that something changed with that (and I’m not sure how many people use merge actors).
Right now we kind of tweak and move things around hoping the problem goes away.