Sim Will Not Use Configured Staircase to Tiny Home

Product: The Sims 4
Platform: PC
Which language are you playing the game in? English
How often does the bug occur?Every time (100%) for this build.
What is your current game version number? Unsure, most up to date version.
What expansions, game packs, and stuff packs do you have installed? All but Eco Lifestyle, Island Living, Realm of Magic, StrangerVille, Jungle Adventure, Moschino, My First Pet, Laundry Day, Movie Night, and Spooky Stuff 
Steps: How can we find the bug ourselves? You can download the home, Agave Abode, off of my gallery under my username.
What happens when the bug occurs? Sim flails her arm around and has the cannot walk here thought bubble.
What do you expect to see? Sim use her stairs to get into her micro home.
Have you installed any customization with the game, e.g. Custom Content or Mods? Yes, but uninstalled, still didn't work.
Did this issue appear after a specific patch or change you made to your system? No.

I've done all I can think to do to remove this issue, removed CC, windows, alt placed paintings, landscaping, you name it. I even got rid of the original staircase and made the same one to put back into place. Nothing. Would love some help. This is my first time making a tiny home, let alone using Tiny Living, and I could really use some help. Im really proud of how it turned out, I dont want to have to bulldoze everything.