[Bug] Illusionary Barrier refuses a square

It wouldnt let me lay down the full barrier, only two tiles and then not offer me the third as option on that square i marked.
Only theory i got is that the new barrier somehow was affected by the old one, which was mine too though.

 

Apparently, it does not matter whether there is a barrier yet or not, you just cannot create an wall diagonnally across the square you are on.

 

Is that an experience you made?

 

I used a custom map with no ennemies to test this, yes.

 

Yes, the game requires that you can face all the targets at the same time.

 

This happened to me once in the Summoning Race PvP map.
I was very confused - this looks very similar.

 

Somebody Want to test this with wall of fire, too?....just for consistency. (I doubt you'd lava yourself, but never know.)

 

Tested with Wall Of Fire, Wall Of Illusion and Illusory Barrier, none of them lets you do this

 

Interesting, since this is not necessary for things like Gusts of War or Chops.

 

Maybe it's just for cards that target tiles? I first noticed it with Dual Laser Beacon.

 

This is the answer. Diagonally across the caster is the only configuration of a 3 tile wall, such that the caster cannot turn and face every chosen tile.

If you watch when you cast a wall spell, it turns the caster if you place a tile behind the caster. The entire wall is always in sight of caster after the turn. Diagonal wall across caster would not allow the to happen.