Bug report for new Hearthings and Enemies spawning inside mountains

Summary:
Enemies and new Hearthlings spawning inside the mountain in an arctic map
Steps to reproduce:

  1. Start next to a mountain/foothill
  2. Wait for enemies/new Hearthlings

Expected Results:
Enemies spawn on the ground, new Hearthlings spawn on the ground
Actual Results:
Enemies and new Hearthlings just spawn inside the mountain and do nothing.
Notes:

Attachments:

Version Number and Mods in use:
No mods, Version 0.24.0, Release 877
System Information:

Can you upload an example savegame where this bug occurs?

I actually deleted the save where the bug was originally occurring, I am on a new modded map that is doing the same thing, but only once.

Do you want me to upload this save?

Sure, that should still be useful.