Placing stairs in Rattlesnake Juice Bar Lot crashes the game

I play on PC, through the EA App, I have no mods or CC and this has happened every time i try to place stairs in the Bar Lot of Oasis Springs, originally named "Rattlesnake Juice". The terrain on this lot has always been bugged (i found a post here from 6 years ago), so when i bulldozed the lot, I simply started building (no terrain editing), I managed to place 3 stairs, all outside, but now i cant place any more staircases. I have tried different staircases, from Base Game and packs, none of them work. I have also tried to have no cheats, like move objects, I tried turning the lot into Residential, since I had it set as Restaurant, but none of it has worked. 

Here's what happens: I place the stairs and it seems fine at first, then the PC gets louder and the game shuts down with no warning or error message. When I tried deleting one of the stairs, the game didn't crash, but it was straining the CPU non stop, as well as when I tried placing different stairs in a different spot, after this, when I tried to leave the lot by clicking "Go to Manage Worlds" I got stuck in an endless loading screen, unable to close the game. I didn't want to test more since I didn't want to ruin the PC, but it looks like you can't place any more than 3 stairs on that specific lot. 

Placing stairs on any other lot works fine, as well as placing the exact lot i was building and adding more stairs. It seems like an issue with only this lot and stairs.