"Teleporting" when moving to a lower level

[AlexeyCase]

Describe the bug

If a character is standing on the same section of the map with a level down, "Descent stairs" will instantly move them to the level below.

The error does not affect moving to a higher floor.

Attach save file

N/A

Steps to reproduce

1. Create a character
2. Go to the one section of the map with the stairs to the lower level
3. Descend stairs

Expected behavior

Obviously, it's not how the descent is supposed to work.

Screenshots

Versions and configuration

• OS: Windows
  • OS Version: 10.0.19045.3803 (22H2)
• Game Version: 7b2ac96 [64-bit]
• Graphics Version: Tiles
• Game Language: Русский <color_dark_gray>(92.8%) [ru]
• Mods loaded: [
  Dark Days Ahead [dda]
  ]

Additional context

No response

[GuardianDll]

/confirmed

[7erracotta]

From what I've observed, this can also be used to pass and noclip through walls without open doors/windows under the right circumstances.

[worm-girl]

I noticed this issue when working on #70479 , vertical movement in general is set up very weirdly.

edit: OK, I accidentally caused this bug while trying to work around a different one. A fix is in that will get rid of it.

[KeremBabaG]

should be closed I think