When using a custom server, the host has access to a menu with several options including the player list tab where players can be kicked, swapped and sent to spectate mode. However, none of these buttons do anything. Players cannot be kicked, swapped or put in spectate mode.
This also holds for bots. If you add bots (by messaging /botcap n), you also can’t decide which team they will belong to when trying to swap their team from the player list menu.
Server & Time
We tried two different servers that were empty first, and then made into our custom server (by rightclicking on it), did not work on both, so seems general issue.