Basic Shapes Disappear and Cannot Be Copied or Repainted in Specific Plot

Steps to Reproduce

1. Buy a new basic shape
2. Try to paint it
3. It won't paint
4. Try to copy a basic shape
5. It says 'Placement failed'

Explanation

There's a bug in my plot, the basic shapes are not working: when i try to duplicate a basic shape it directly dissapears, i can buy new basic shapes but when i try to copy an existance basic shapes it won't let me do it. In addition, I can't paint or change the color of any basic shapes, however i can build normally with every other in-game item. I can move the basic shapes however i want but i can't copy or repaint. This only happens in one of my plots, the others work normally, if there's anyway this can be fixed i would be eternal grateful, as this plot took me almost a year and i dont want to lose it and finis****.

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