Residential Rental bug

Hello, 
I’m a PC player - I play with mods, but I’m still having the problem after I removed them. I’m playing the latest version and I have all packs except Star Wars and werewolves  

units I set up for tenants are being assigned automatically to other units and unoccupied units are showing as occupied one unit isn’t showing up for rent at all . 
I built a five unit apartment building in Del sol valley but this also happened with a previous residential rental in another world. 

• I moved all of my Sims out of the units including the property owner, and sold the residential rental. I  didn’t sell the furniture because I wanted to keep it decorated, I went into build mode to set up units for tenants. I noticed some of the units furniture wasn’t visible until I rotated the room . Then, the furniture appeared.  I rotated the room back using the arrow furniture remained visible.
• i believe the issue happens after I save the lot - I got an error message saying my request couldn’t be processed and to try again later, but I noticed the lot was saved to my library anyways
• My Sim bought the residential rental.  I did not fill up the other vacancies, but when I went into build buy mode, one of the bathrooms in a unit was assigned to another  unit. I tried to edit this in build buy, but it’s saying the unit is occupied (it’s not) and can’t be edited.
• I tried to edit the lot from Manage Worlds,  and the unoccupied units are still showing as occupied and cannot be edited. The areas I set up for tenants own private units are showing up as shared, and one unit won’t even show up for rent at all.

any help is greatly appreciated thank you!