I think mine's a separate issue but FWIW I wasn't able to transfer any FB points from MR (I tried this AM)...
So I called MR and they said due to security reasons you cannot transfer Air France/FB points on Saturdays and Sundays (not sure if this is a temp or permanent thing). However they said if I call MR's agent they can do it for me on the weekends.
Called MR, got my points transferred to AF/FB. Points got into account 1 minute later. Booked two legs without any problems (46000 FB its total). Hopefully all is good.
Learn something new everyday!
FWIW you can transfer UR points to AF no problem on the weekends.