Is this a bug?

[Miharukun]

So my character can't kill NPC's by normal attack and it's passable to most of the NPC's and only can kill them using spells.

 

http://www.ascensiongamedev.com/resources/filehost/3f1c3c7990a89426726d03ba6e4bfa82.mp4

[Chronos]

You've likely been playing with Z-Layers, make sure you're not on Z-Layer 2 when your NPCs are on Z-Layer 1.

[Miharukun]

Ah i see thanks Chronos, but why it affect all of the maps?

[Chronos]

Because switching maps does not reset your Z-Layer. You need to walk over a tile that changes it back to normal.

[Giligis]

The Z layer is extremely complicated. @Kibbelz explains it pretty well with a neat video here: 

 

[Miharukun]

I get it, thanks a lot Chronos and Corey !