i don’t know much about tracking down memory errors, but maybe this will help:
i don’t know if there is a one size fits all way to find memory errors, those are usually the most difficult problems to track down.
can you describe more about when it crashes? does it take a while like a memory leak, or does it sometimes happen immediately when you run the game? if you remove your skeletal meshes from the game, does it still crash? if not, maybe some data in you skeletal meshes LODs are corrupted.