When visiting fellowship members/neighbours and giving help to their builder's hut I've twice had a situation where the +13200 coins (and possibly +1320 supply) has appeared above the BH followed by a message saying that the BH cannot be boosted further.. I'm not clear whether the extra coins and supply are actually added to my treasure tally or not but the initial impression is that it has been. The later occurence of this was today on Beta. I can't remember where the previous one happened but it would have been before the current version. I'm using Chrome on WIndows 10 but I suspect that this is to do with synchronisation between the laptop and the host. If the connection had gone down before the message was displayed I would have thought that I had successfully delivered help and not have revisited the city to try to give help again.