Flower pots can be placed on the side of blocks even if there is no block supporting it. They do not break when the targeted block it broken, it can be used to place flower pots in thin are! I think the way to fix it is to have the Flower pots always check for a suitable block under them at all times like grass, sugar cane, ect. Please contact me at "tmk6886@yahoo.com" or "grkthegreat2018@gmail.com"

Thanks for your time

-Terry Kiernan