Of course! So I've setted the flag ''build'' in the global region to false and saved it. In the globallist it's also marked as red/ false. So it schould work. But the problem is that breaking blocks still works everywhere and for everyone. Just placing blocks is now not further makeable! I have absolutely no idea what the problem is because the world gamemode is survival und the user shouldn't have the permission to break blocks (they have overall no permissions, just me as the admin).
The interesting thing that I found out now is, that in my normal/main world everyone can break blocks also when I make a separate region and the flag ''build'' is there setted false too. But in my second world, which I created with project worlds, there you can't break blocks in the regions which are protected by the flag ''build'' setted to false! So in this second world it works but I don't know why! Gamemodes are in both worlds survival. The only difference that I can recognize so far is that my main world is a map from the internet and my second is a map created with the plugin project worlds. Maybe it is a setting thing but what Kind of a setting. I'm out at that point.
Maybe that's more helpful to understand my problem!