I have had like two times where my own minions pinned me to a wall, and honestly that was inconvenient. However, I also immediately recognized it as my fault for letting them build up on me. As far as blocking me goes, those are the only two times I've noticed. I have noticed several instances where a minion will freeze in the lane. His health stays the same, and he can still be killed. Just doesn't move or attack. Not a huge issue, just inconvenient and obviously a bug. I've had them stall out visually as well. They stayed in place, but judging from the other laners actions it was only on my screen. I do hope those issues get resolved, but it's not that often and it takes time to deal with these things. I know I could never program anything like that so I'm not going to stress on the guys who can. After all, we get to play a free game that's fun as hell. What's there to complain about?