I found a line of code I had commented out to properly offset an object when placing it, but I don't recall why I commented it out or if I even meant to, heh. I uncommented it and tested it with my 32x16 car model and it seems to work correctly again, but let me know if you have any issues with the latest update. One thing to note, which I may have mentioned before, is when you do want an object to span multiple tiles, you'll want to make sure it's at least a multiple of the tile width. So a 32x16 model would be 2 tiles wide, but a 30x16 would only cover one tile since it's less than double the tile width.
Also, let me know if you continue to see that first animation issue after the latest update. My levers don't seem to be having that issue anymore, so hopefully that takes care of it. :)