We were able to gather a lot of details about the conditions in which this issue occurs which will be very helpful in reproducing the problem and fixing it if it is on our side
if you (all) want to contribute a little, please share (if you had problems) some info
- Do you have a fb name or a simple user name ?
- if you registered with the fb account how did you manage to log in ? What did you do ?
- With which device or browser you have a problem (or not) ?