This capture was taken just as Annabelle was using SHUT IT! She is pointed out with an arrow. You can see that the far Ground Pounder has been taken out by SHUT IT! but the Mortar and Bunker are closer to Annabelle yet unaffected. I've noticed this kind of thing happening in other battles too. What's going on? Video of the incident:
This may still be a bug but I assume Annabelle is detecting GP through it's 'target zone' (which is closer to Annabelle than either mortar or bunker)
Nope. But it has been resolved for a future update. To "translate" the reasoning I received, both the PH9 and Ground Pounder 3's unused turrets (the ones in the range configuration you're *not* using) are reset to a "zero" position (middle of the map) and disabled from working and hidden from view. If Annabelle is close to the middle of the map and uses Shut It!, she will take out these turrets (and consequently all the building's turrets actually) and make the building glow.
