I have a problem with local multiplayer spawning

Hey guys,

i want to create a local multiplayer game for two players. Here ist my gamemode and the spawning function:

My Pawn is called Physics Ball BP. The default spawn in the gamemode is disabled.
The default value of the variable “Max Player Amount” is 2.
“Player Start Array” contains the PlayerStarts.
The PlayerStarts have the tag “0” and “1”.
This is my viewport before the start:

This is my viewport if i press Play:

I think i just missed something basic, but i cant figure out what i´ve done wrong.
I hope you can help me.

best regards

bump
Would be nice if someone has at least a hint.