[LD] Stone Stairs not working for ghosts in Ravenwood environment

Product: The Sims 4
Platform: PC
Which language are you playing the game in? English
How often does the bug occur? Always (100%)
What is your current game version number? 1.110.294.1020
What expansions, game packs, and stuff packs do you have installed? All packs. 
Steps: How can we find the bug ourselves? Create a ghost and have them use the stone staircase in Ravenwood in the Whispering Glen neighbourhood, as shown in the video below. 
What happens when the bug occurs? Ghosts sims get stuck in a loop when trying to use the stairs. Human sims and other occults don't have that problem. 
What do you expect to see? Ghosts sims to go down the stairs without spinning in a loop. 
Have you installed any customization with the game, e.g. Custom Content or Mods? No
Did this issue appear after a specific patch or change you made to your system? No

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