We have written a plugin for UE4 that allows Unreal users to import and set up Megascans assets into Unreal Engine. Recently we added Alembic files to our assets and also updated all our plugins to support importing these files in various tools. We were unable to update our UE4 plugin because we were afflicted by this issue: https://forums.unrealengine.com/development-discussion/python-scripting/1631584-import-alembic-with-abcimportsettings-in-unreal-4-22-using-python
It would be great if this bug is fixed soon so that we Quixel's Unreal users can benefit from the new format.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-89453 in the post.