Weird misplaced upper-layer maptiles + missing NPCs bugs?

I'm still using Alectormancy+2 at the moment. Here's something that's happened a couple of times lately...



Two examples of maptiles (the doors, in this case) appearing where they aren't supposed to. I'm not sure why they're there; they don't show up in Custom at all, only when playing the game. The first time this happened, the unwanted tiles were actually visible in Custom and I was able to just go in and remove them... but this time they aren't.

Also, on the same map, four different chest NPCs are not showing up where they're supposed to. I have no idea where they went. There's no tags that should make them not show (aside from "usable only once" tags), and they show up correctly in Custom... so I'm guessing something weird is going on. Nevermind: this part was never a bug, I just put the "bottom half of box" tiles on a higher layer by accident. Whoops! XD

EDIT: Actually, they are showing up in Custom after all--the doors are set up to animate to a blank tile depending on some tag stuff, so Custom always shows them as the blank tile when they're put down in the tile editor and set to animate. How they got there, though, is still a mystery, since I know I didn't put down random door tiles in the middle of walls AND animate them...

All of these are on Layer 1. Haven't seen any misplaced tiles from any other layer. I just erased them all and will make a backup of the game just in case anything worse happens... but hopefully they'll stay gone this time.

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FYS:AHS -- Swapping out some step-on NPCs for zones + each step script
Puckamon -- Not until the reserve party is expanded.[/size]