Hello, all!
I've exported a site from one site collection twice, just in case - once through CA with the full security box checked, and once via Export-SPWeb with the -includeusersecurity switch. Both exports go on without issue.
I then import with Import-SPWeb -identity "<URL of different site collection in same web app>" -path "<Path for Exported files> -IncludeUserSecurity.
The import goes fine in terms of the documents with zero errors Reported. However, on the permissions for the library, my farm admin account is the only entry. It retained none of the custom permissions, though the log indicates the users/groups were imported successfully.
Any insight?