Solved
Unable to build walls
Product: The Sims 4 Platform:PC Which language are you playing the game in? English How often does the bug occur? Every time (100%) What is your current game version number? 1.46.18.1020 What ex...
Ok I have finally managed to fix this.
At first even completely uninstalling and reinstalling didn't solve the problem so I uninstalled everything again, and then used ccleaner, made sure there was no lingering sims 4 folders in either my program files or documents, then used ccleaner again just for good measure, and restarted my pc. Then I reinstalled the game and all its expansions and packs and tested with a completely fresh game in windowed mode and my walls, pools, fountains and fences are back again. So glad I got it sorted and thank you for everyone who helped. Wanted to give steps incase anyone else finds they have this wretched problem.
