Import BPIX to Embedded Workspace Fails

Working with the new preview of Embedded Workspaces.  Unfortunately attempting to Import a pbix with data fails.

ImportState: "Failed"

With no other information or error messages.  Very simple pbix's with manually entered test data import fine, but even small 2-5MB pbix's with real data fail.  I've tried 3 different files, all very small with 1 simple report - all fail.

Any insight on how to debug this would be helpful.  I checked the Azure audit logs, but nothing there either.

Thanks,

Mike