Client's house is not accessible

Did you find what the issue was?
I'm having a similar problem on accessing households own home.
In live mode in Sims lot, they can't walk inside their house.
I can't change the levels of each floor or when clicking the type of walls (up or down)
nothing happens. This started recently, of this month of August.
I'm assuming it's a broken mod, but I don't know which one.
I've asked, no one is responding. Unfortunately I can't create my own forum post either.
I've tried searching the problem but there are so many posts and links and no specific identification,
regarding exact problem with live modes inaccessible homes.
Your issue @RoseyaSimi4 sounds similar to mine, and hopefully someone has an answer. to look
for said broken mod and update it or remove it.
-All I remember is a year ago, I think I had this same problem but it was very weird, because it was
created by an outdated mod I think about traveling to venues or so, and then someone mentioned later on,
that there was a fix on people having problems no being able to travel or access venues or places or (any of that).
So I got that fix and then things began to work again, until a few days ago, Sims now can't go into their homes.
Who's to say if there maybe other issues.
Unfortunately, there is no specific solution forums, which complicate a lot how to immediately fix certain mods.
(For example, I have several mods that I've used for a very-long time, but I didn't sort them at the
beginning of playing TS4, so now I don't know which mod needs updating and which is just CC or CC creators not naming CC correctly,
So we're left guessing, and when these problems are unresolved and people not having answers just listing broken mods.
But, what if we don't know, and there's no real way of knowing.
(I do know that by checking mods at a time removing and adding to see which is causing the problem).
-But it really is a hassle, that the best ways is just to dich with leaving one to figure out on their own.
-I mean, I doubt is too hard to properly assort through individual situations of problems.
I use to administrated a huge website so I didn't find it complicated.

Anyway, I'm hoping mentioning this, here is ok and someone can help with it.
(Unfortunately obviously I can't play, with Sims unable to enter their homes, so I have to wait for someone to respond).