I hope you had a good start of the week despite the USB collapse.
This problem is already known. We have personally suffered the frustration of watching the USB detached from the board. Seems like the solder pads in the USB are not strong enough in some boards (not to say extremely weak) and they can not stand any kind of strength.
Although we think that this should not happen if the solder is properly done, we also have to admit that a through-hole USB connector would have been a better idea. We have already change this detail for the next revisión of the board.
Anyway, we are already working on a little step-by-step manual to show how this can be fixed. It is really easy. You just need a soldering iron with a thin tip and strong glue. Hopefully, it will be available for the weekend.
If you have any further questions, please do not hesitate to ask.
And sorry for any inconvenience this may cause you.
All the best,