My Wizard casts invisibility on himself and then would like to cast spells (ones that don't require attack rolls) from a Ring of Spell Storing.
According to developers, using a magic item to cast a spell is neither the "Use an Object" action nor the "Cast a Spell" action. According to the Invisibility spell, you become visible if you attack or cast a spell.
Does the Wizard maintain his Invisibility so long as he does not make an attack roll or break concentration when "casting" from a magic item? And if not, why? How is "casting a spell" in respect of breaking Invisibility different from "casting a spell" in respect to effects like Twinned Spell and Arcane Ward (as per the link above)?