We've recently become aware of certain invitations and popups not working correctly. The devs are aware of the issue and these should be fixed first thing next week.
Here are two of the known issues - one of which has a workaround:
* Village invitation: When sending a /vinvite or right clicking on a player and inviting them to join your village, the player gets the popup, responds with a YES to join and clicks SEND. However, nothing happens. The player is not part of the village.
Workaround for village invite:
* Team forming: Currently, you cannot form a team. Right clicking a player, using Team up and sending the invite works. The other player responds yes to the popup, but the team is not formed.
If you find any other invitations that do not work, please post the details below so they can all be addressed at the same time.