Why can't I see other players in multiplayer?

I use to be able to create a default game from the 3rd person template. Select 2 or more players, select play and see the other players in the respective windows. I can no longer do that. They do not render anymore. I also tried to do it in other templates, also not working. Did I mess up some default global variable? Any ideas?

Just as a follow up. I installed version 4.10.4 of the engine and the other players can be seen just fine with the 3rd person template. So I guess something changed in 4.11. Should I submit a bug report?