The files in the linked case contain a project with a Datasmith scene and updated .udatasmith files that contains changes to the imported scene. When using the Dataprep Tool to import the updated scene, it crashes during the import process. The crash is believed to happen at line 2039 of MaterialShared.cpp.
This issue is only present in 4.22 (4.22E0).
Results: Editor crashes during import
Expected: Editor doesn't crash and scene is imported
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-71973 in the post.