Most bugs I've encountered have to do with free running. It seems to be not as fluid as in the other AC's and very buggy.
I was always decent with it able to chase down thieves and people fleeing from me. but in this one I have trouble even keeping up in races. Ezio keeps jumping in the wrong direction, instead of going straight he goes 45 degrees off to one side or another.
I was running holding RT and A ran to the edge of a roof expecting to jump to the chimney that was 4 feet away and instead ezio drops and hangs onto the roof.
During a mission I was walking on the street and came to the edge of a building that had a awning above it and ezio stop and leaned over like I was looking off a roof. I had to run and jump over a invisible gap.
I found a couple of areas where there are crates set up like steps leading to a roof. Run up the steps hit the building and fall back down. And the roof wasn't very high since I ended up walking to the side of the building and just jumping up and grabbing the roof without any boxes.
And the most funniest bug I saw, and I wish I had a capture card or something. I got into a fight with guards and killed them. And the townspeople ran away but this one woman ran into a corner. She had turned around like she should have to run out of the corner but another woman was behind her pushing her back into the corner. It was funny because the one woman is trying to run away screaming "I got to get out of here" while the other woman is literally kept pushing her back into the corner.
Anyone else seeing this issues?