A quirk I have noticed when walking thru my new house on the first floor: if I do it by holding down the arrow key (my normal MO) I cannot traverse the entire screen distance. I always stop about halfway across (like it is lagging) until I un-press the key and then press it again. So to walk from my entrance to the furthest end of my yard is usually two press-and-holds of the left arrow key. Where I hang up is a place in my house where I have a number of objects clustered together (bed, shelf, table, several ornaments) so maybe it has something to do with that? I don't know if this qualifies as a bug proper, but it has impinged on my play so I thought I would mention it.