Armor stand can't be removed by player, it was possible back in previous versions of spigot 1.14.4 (something like a week ago).

Seems this is the bad patch: https://hub.spigotmc.org/stash/projects/SPIGOT/repos/craftbukkit/commits/6ed8a189660db58e31d4768a1916a3e79a73d544

Spawn an invisible armorstand and you can't break it.

/summon minecraft:armor_stand ~ ~ ~ {Invisible:true}

Was this an intentional behaviour? I don't see why because Minecraft has Invincible tag, I don't think it's right to make Invisible tag also apply the Invincible behaviour to the ArmorStand{{}}

Thanks a lot