Hi Jeordanis,
I've figured out the problem with the alembic. If I just import without specifying ornatrix alembic then I get curves which tend to make Maya hang - that's user error of sorts.
The more serious issues are the sinks not appearing since the July build and the constant crashing.
I'm using Maya 2020.4 on a brand new Xeon Workstation with a 24GB Nvidia RTX card using the latest build of Windows 10 - alongside Redshift ( not sure if that affects crashing? )
Apologies for posting in the Max section but there just seems to be a single report defect option when I log in.
I'm getting nice results but the crashing is annoying. Also not being able to update and try the latest builds ( because the sinks are not visible ) is less than ideal.
M