I was playing a game online with a friend. In the second round I had a hog in a flying saucer with the limburger equiped. I was trying to land it on top of another hog and was pushing up against a wall. Then the hog just disappeared and it went on to the next turn. It didn't say that they died or anything. He saw the same thing happen on his side.
Links to demo and log file:
https://www.dropbox.com/s/61mtfhdar3rv7vy/cheese%20saucer%20glitch.51.hwd?dl=0
https://www.dropbox.com/s/igrroif7fvn597l/game0.log?dl=0