Yeah this is a new bug not seen in 6.1.3 and earlier iOS versions.
This is super annoying but does add a "Hard" element to a level. I almost cried when this happened to me in Kyle's 'Ankr', I can still feel the anguish! You need to time your shoots perfectly to avoid this bug but it's not terribly difficult to do.
lol, I concur. I dug out my old 3GS so I could post it to you Kyle but alas, I can't get it charging it's totally kaput!