Is it a bug? Lord of Verminions

I couldn't go through the whole tutorial thing because of this...
http://i.imgur.com/Q5g5Nk5.jpg

because of what now?

The cherry bombs wouldn't attack the shield... I tried it twice already, wouldn't work

does anyone know?

I've had a lot of problems with things not attacking the shield lately.

I usually send a pack of 4 Mini-Mole's to get the shield (they're fast and good at shield killing).

They usually destroy it in just a few seconds.
But I noticed I wasn't hearing the destruction of the shield when I normally do.

Tried it with a bunch of minions and nothing seemed to attack the shield.

And then... sometimes they do.

I don't do a lot of Verminion, though, so I didn't spend too much time on it.

A friend of mine said in the tutorial hers bugged out and she couldn't finish it. So...that's 2 instances of this I know of including yours now.

Make that three! I also could not finish the tutorial.

Huh. Dunno, it worked fine when I did it. o.o

I did it twice yesterday, couldn't finish the shield part not matter what i tried. So weird

The same thing has happened to me before.