[Solved] Losing the connection while syncing with collab

If you lose the connection while getting updates of Collab from one of your team member, Collab believes you're updated even though you're not. Deleting the collab snapshot or the whole collab folder doesn't change anything after that.

I uploaded again so that my mate can try and sync but he doesn't get the assets. It's probably because Collab thinks he has them but he doesn't.
What to do?

Solution: I had to reupload with my own collab snapshot deleted. Then he could successfully get the assets.