That included who? Peter perhaps? The Chosen Twelve after the death of Christ for years were not doing what they were told and had to be corrected among them Peter who was told to accept the Gentiles. Paul was the actual organizer of Roman Churches much more than Peter. The Chosen Twelve had many differences and disputes amongst themselves as did others like Paul and Barnabas.
The Disciples after Christ went into the heavens were not doing what they were told to do in The Great Commission thus came the persecution to scatter the flock. The disagreements also scattered the flock. Disagreements that were not Blasphemy but rather personal ones as to even individual beliefs. Jesus Himself settled the question of which followers were right when His chosen Twelve were JEALOUS {note that event} over another sect casting out demons and healing people in Jesus name and they asked Christ if they should make the stop. What was His answer to them.
There is the answer to to Orange and Green jealousy which is all it actually is JELOUSY. It is as much a jealousy as the Gentile vs the Jewish. Paul had a teaching on that jealousy and why it was to be so. Churches need to stop wasting precious time and strength trying to convert each other to each others churches. That fight is 2000 years old and will not be settled until all are united as one when Christ comes for His chosen to take them.
But these debates do serve a useful purpose though. They make a person sharpen up on their reading of scripture which is good and take stock of their own beliefs and faith in Christ which is also good. Be careful though not to weaken the faith of one less able to handle such or has the measure of faith ourselves or others may have. These debates should not be aimed at making one fall in their beliefs where GOD through the Holy Spirit has placed them. If GOD wants Catholic to be Baptist or Pentecostals to be Methodist and vice versa that is HIS sovereign business not ours. Work in the laboring field where GOD has placed you. If He has need of you elsewhere He Himself vis The Holy Spirit will guide you there and not man.
“EVERYONE thinks his or her own individual interpretation of the Bible is the correct one. There is a lot of pride to go around”
You seem fixated on “individual interpretation”. Not sure where you’re getting that as there is nothing valid about that. Most individuals depend on the guidance of learned individuals. Bit it comes down to reading and praying. Listening to the Holy Spirit and seeking Gods wisdom.
Depending on the interpretation of some guy in Rome is not the mystical panacea.
“If you cannot find this teaching authority in the Catholic Church, where do you find it? Sincere question.”
Through personal study, group study, prayer, and worship with learned and Godly people. My salvation and communication to Christ does not require mediation through those people.
He left the Holy Spirit. HE is our rudder.