I am a big Grumpy Gobblers player. I am quite good at it.
Sometimes when I shoot blocks, multiple blocks fall on each other, and some of them are toppled and just leaning against the pile. You would expect that when the blocks on the bottom pop and vanish, that these leaning blocks would fall down too, but they often don't. They stay.
They remain balancing there, at physically impossible angles, so you often have to shoot them all down one by one.
Yes I play grumpy gobblers a lot as well and have noticed This. I hate it! It's annoying! Once a block knocks over it counts as out but like you said with the blocks like that, it has got to change. It ruins my score sometimes.
Yes, sometimes they hang on an angle, float in the air, or even bounce to a new spot but stay there. Usually you can still get them, but it makes things harder.