maybe if you use owner of triggering unit instead of player 1 red
Convert Player to Player Group
- Untitled Trigger 001
- Events
- Conditions
- Actions
- Game - Display to (Player group((Owner of (Triggering unit)))) the text: Bla
Game - Display to (Player group((Owner of (Entering unit)))) the text: It should work if your event has "Unit Enters Region"