New install on Windows 10 1809.
Version 220.127.116.11 (Official build) beta (64-bit)
signed in Profile is Organizational AAD.
Attempting to import browser data ( in this case just selecting Favorites)
Sorry, we couldn't import your data
Happens for import from any of the browsers that are installed on this PC ( Chrome, Firefox and Edge).
is there something else that needs to happen first?
We are aware of some issues happening with Firefox importing, I have not seen any issues with Edge or Chrome importing yet.
When you where trying to import were all the browsers signed in and running?
I would also try and sign out of any browsers running, restart your computer, then sign into them again and try to Sync. (only the two browsers you would like to Sync in-between at the time).
The engineering team is working on the current Firefox issue though.
Please let me know how it goes.