UE will reakdown when drag uasset files in the scene

I export abc files from houdini , and import to UE4.15, then save the abc file for uasset files.but once i restart the software,drag the uasset files in the scene , the software will been breakdown.

Anyone know how to solve ?

Or what I need to pay attention to from hodini export abc files to UE?

200994-breakdown.png