When special summoning an Adamancipator monster from GY with Adamancipator sign, the prompt to stack a rock monster is “[Adamancipator Signs] Special Summon”
Bug reproduction steps
Have any adamancipator in GY, use Adamancipator Signs to SS it with a rock target in deck.
Screenshot OR error code
Some more proper text like “Do you want to put a rock monster on the top of the deck” or something