Did you put the correct ServerX=## and ServerY=## and AltSaveDirectoy=## coords in your specific starting .bat files?
Each .bat file has to be set with his own coords that have to correspond with each server.
You can check it in your .Json file. Open it and look for ( example ) "gridX": 0, "gridY": 2, and "name"
So you have to look in the Json file for 4 of this X and Y and name
ShooterGameServer.exe Ocean?ServerX=0?ServerY=0?AltSaveDirectoryName=00