Update: the problem did not only stick to the Culpepper apartment building, but it seems to happen when I'm trying to enter the house nearby (the only single house in San Myshuno), but I've never touched it until now so I don't know how long it has been happening for that house, and the karaoke bar as well.
The other apartment building of the block is however fine, but I noticed that on the block the items of the festivals are overlapping because they're not disappearing... might that be the problem? I'll take any possible help since this took away 5 livable lots and a public location for no apparent reason and it's definitely annoying.
