Not allowing me to place basic shapes on plot, all other items work, basic shapes do not. It says "Placement failed"

recently when i try to copy and paste one of my basic shape structure on my plot it shows up a (placement failed) warning. this is very confusing to me as i still have 5% left of my plot data and a...

"placement failed". I dont know what the issue is... i've tried everything, and im not even at 100% plot data? please help so i can finish my favorite build!