Some objects do not appear in-editor as they do in-game

[opsodps]

Version: 1.3 Kawaguchiko

These are the ones I've found so far; there could be more.

The Block Platform in the Plains object set lacks the "drop shadows" in the editor, which is important because if any part of these blocks touch the bottom of the screen, including the shadows, the level crashes, but the editor doesn't show this (or give a warning like it does for the other parts of the block).

Most of the Block Platforms in the Desert:

I'll update this thread if I find any more.

[mchlnix]

The shadow is something, that is generated after the fact and not technically part of the object. So there would need to be some research made into how this works. I think Workshop actually had shadows, but workshop didn't always use the actual ROM graphics. So maybe there was some trickery.

[opsodps]

Here's another one: "Lower Right Hill Corner" in the Underground set appears the same as the Ceiling tile in-editor