Why Assetion RF_NeedLoad?

In my project, I had some assetions from somewhere, they all met assertion xxx->HasAnyFlags(RF_NeedLoad). Here, xxx maybe “InArchetype” or “DefaultData”. These assertions won’t occur when run on target platform “Win64”, but occured on a platform not that.

I have used about 1 week time to try to figure out what caused such a kind of issue, but the result is I’m so frustrated now!

Want help!

Anybody can tell why this assertion occur? Because loading time too long? Resource not on the disk? Path isn’t right? Or something else, I don’t know.