When I activate the effect of Heavy Mech Support Platform on the field and try to equip it to Chimeratech Overdragon, it destroys itself and displayed a message saying “Parameter should be 1 card.”.
Bug reproduction steps
From your hand, place Heavy Mech Support Platform onto the field. Activate the effect and target a Machine monster you control and equip it.
Screenshot OR error code
Video: Heavy Mech Support Platform Effect Bug (YGO Omega)
It should equip to a Machine Monster or Unequip to Special Summon as specified in the card description.