Here I will give a scenario.
Christian A, and Christian B.
Christian A, and Christian B both agree with Jesus divinity, how to be saved, and the Trinity.
But Christian A and Christian B disagree on certain doctrines.
Is this a case whether or not Christian A or Christian B has the Holy Spirit living inside of them?
Why would the Holy Spirit lead Christians into contradictory views?
I'm guessing what you meant by doctrine is more of how one should structure and express their christian life. Yes there is more or less a template in the basic of what a christian should believe in to be an actual christian, such as how to be saved, trinity, etc.
But then in terms of how one should express that will naturally be more individual, and if a bunch of individuals have the same vision of how the assembly should be, doctrine is form. The fact that there are different ways people structure their walk is totally fine, that is the freedom we have. Some may want to give sabbath importance, some want to order it by rituals, some through missionary work, etc. I think where the clash is is when we put more emphasis and importance over how we want to express it over what and why we are expressing it in the first place. I think that's where alot of contradiction comes into play.
For me, I have no problem with whichever day of worship, but for some its really important. We don't have to clash at all.But its different if I judge them for making one day too important, and the same if they shame me for not picking a particular day. Now if they are going against the Word, then thats not a matter of expressing it, but matter of what their basic understanding of the faith is.
The Holy Spirit will only point back to the basics of the faith, and not to forget it. But its up to us to examine ourselves if such basics are in the forefront of thought when we are expressing and structuring our christian walk.
So yes it is normal, is it something that I celebrate on? No. But its a reality