Food that I cook on a campfire doesn't stack with food cooked by a furnace or other means.
So far it seems to at least affect cooked fish and cooked salmon...
Had the same issue as well. Upon loading the world on occasion, I will see that I have fallen to death despite exiting the world on solid ground and in a different location. I will have died on the spawnpoint of my world whether I exited there or not. Granted I had a structure built on the spawnpoint, but the issue only happens sometimes and each time I have to go retrieve my items. Guess I'm going to have to place a slime block on the world spawn until this is fixed.
This has happened to me as well when riding on a horse. A invisible wall will prevent you from going in a certain direction. Even if you get off the horse, the wall is still there. Reloading the world fixes this issue. This happened on Windows 10 Survival if that's relevant.
Leather armor on mobs, such as skeletons, is also displayed as white even though it is undyed.