If you cloned any of the tall plant variants into itself they would break as if the player broke it. This will cause the block to stay but it still plays a sound, and drop the entity used to place them.

This also has another bug that makes impulse command blocks function like a repeating command block when powdered. Even after depowering the command block it will still function like a repeating command block. The only way to resolve this is by breaking the command block that is running the clone command.

 #Recreation#

This is the clone command that I am using. (clone ~-3 ~ ~-3 ~3 ~1 ~3 ~-3 ~ ~-3 filtered minecraft:tall_grass force)

When placing a tallgrass block near the command block the effects will occur.