Delete and move objects

When I start Build Mode, I can move and delete objects as usual. After playing for a short time, this is no longer possible. I can no longer delete or place objects.

I have already tried:

-uninstalled and reinstalled the EA app

-uninstalled and reinstalled Sims 4

-cleared the cache and all other data

-repaired the game

-I do not use Mods 

And when I want to Save the Game it is not possible.

Unfortunately, none of this has helped.

Best regards