Some Protestants (Anglicans, Lutherans ) believe in the Real Presence, but not as it is understood in the doctrine of transsubstantiation. That is different from other Protestants who regard the Lord’s Supper as a spiritual communion or purely symbolic. One point of contention between Luther and Calvin was on that issue. Luther insisted that “This is my body...This is my blood” meant exactly that.
technically - luther and rcc - consubstantiation vs transubstantiation.