In a side scroll gravity if you're in a room with a "roof" on it and have a key drop from the ceiling it will get stuck in the non walk ceiling combos.
I guess it's possible this can't be fixed, since making it ignore non walk would allow it to fall through the floor as well, but I figured I'd throw it out there anyway.
I can live well with it. 😉
Sidescroll item drops from ceiling
Like you say, I don't know what you'd want to have happen here...
Just leave a hole in the ceiling for the key, or put the ceiling in a background layer.
It ignores Y axis placement when on a screen with sideview gravity. If you are going to put items below the non-walk combos (platform), don't use the "Item falls from Ceiling" flag.
Not a bug.
EDIT: DarkDragon, you had posted before I did, I just had a delay here.
EDIT: Here is a good one, place the item 1 tile below the non-walk tile without the use of the screen flag, and when Item appears in ZC, it will fall down to the spot you want.