I have this issue as well, quite frequently actually when placing lots! It first started when I decided to adjust/replace all the lots when Life and Death came out. I'm not the best builder, so decided to place lots from the gallery. It does not happen with every single lot, but maybe every other. I always had moveobjects on, because pretty much all of them were built using it. It happened to me for example when placing Kate Emeralds renovated mansion for Ravenwood, as well as many of lilsimsie's Glimmerbrook lots, and many more. Whenever I placed the lot and I want to add or remove an object, I can only do it once, then I have to exit whatever tool I was using, back to the main building interface. For example I could delete 1 object, not 2, or paint 1 brush stroke at the time. Or I could use the hammer tool once, move to the eyedropper tool, back to the the hammer tool to delete another thing, and so on. Luckily it settles to normal after one or two reloads, but if I go and edit any of the other already placed lots, it mostly appears there too when not yet restarted. I play on an old save, because I'm so slow at building my own lots. And play on console.