"Load this asset groups" takes forever!

Version: 1.0.72.0

Frequency: Consistently

Severity: Blocker

Context: Custom Scenery Package

Bug Report: When loading scenery project into scenery editor. It takes forever, 5+ minutes sometimes infinitely for the objects to load in with 100%Cpu usage(7800x3d). In FS20 it took about 10 seconds. for bigger projects.

A work around for now , is to change the graphics preset. I had it on ultra. I changed it and the object instantly loaded. Then i switched it back to ultra