They stopped their behavior when it was motivated by erroneous belief, yes.
In the history of heresies, there was a sect that worshiped Angels, and believed that they had to be our intermediaries before God (i.e., we could have no communion directly with God, but only through the Angels). This was condemned both in the New Testament, and by the Church at local councils. And so, if they used images of these angels, this would be idolatry. You don’t encounter such things often, in Church history, but it is not entirely unheard of.
“They stopped their behavior when it was motivated by erroneous belief, yes.”
Unlike the supposedly infallible “church” which you promote above all else including scripture. Even though the Bible tells churches to repent, yours refuses to. It is impossible to stop this erroneous behavior when the leaders are too blind to see it is error.