Evony WN1 is an event where Worlds 1, 2, 3, 4, and 5 have all been merged into one. Yes, this means that all the different players, heroes, cities, etc, have been placed together to fight until death.
There have been many bugs as this is the first time this has been done. The administration is working hard to fix these issues. If you discover one, don’t hesitate to report it.