Pets often stuck at the middle of ladders

Summary:
Pets often get stuck at the middle of ladders

Steps to reproduce:

  1. Get moar trappers
  2. Get moar ladders
  3. Accidents happen : pets get stuck at the middle of ladders while they climb ladders.

Expected Results:
Not stucked

Actual Results:
They stop moving

Notes:
none

Attachments:
none

Version Number and Mods in use:
Alpha 19

System Information:
AMD 64 8Go RAM