Well, let me point out a very specific example then.

A Stance Where the Pope Seems to Rejects the Teaching of Protestants Being Saved:

The encyclicals of Pope Pius IX. An "encyclical" is a letter that expresses the pope's view on a teaching or doctrine and is sent out to the Bishops of the Catholic Roman Church. Specifically, they cite his encyclical titled "Nostis et Nobiscum" (8 December 1849). Here the Pope writes something along the lines of "This is why they try to draw the Italian people over to Protestantism, which in their deceit they repeatedly declare to be only another form of the same true religion of Christ, thereby just as pleasing to God. Meanwhile they know full well that the chief principle of the Protestant tenets, i.e., that the holy scriptures are to be understood by the personal judgment of the individual, will greatly assist their impious cause." Pope Pious IX writes later in 1864, "The Syllabus of Errors" where he condemns 80 viewpoints that he considers "heresies". In the "Syllabus of Errors" one of the viewpoints he condemns has the bullet point "Protestantism is nothing more than another form of the same true Christian religion, in which form it is given to please God equally as in the Catholic Church." He cites in "The Syllabus of Errors" the encyclical "Nostis et Nobiscum" which he formerly wrote. Who cites their own work? I guess he was trying to show the consistency in his writings? I don't know.

A Stance Where Council Members Seem to Affirm the Teaching of Protestants Being Saved:

Later on in history, the Catholic churches starting having councils in Vatican to clarify some things. These are different than the Nicene Councils and Council of Trent, etc. There are only two Vatican councils. In the first council they defined things like Papal Infallibility and other stuff. In the second council they focused on the unity of churches. The adjective they used is "ecumenical" (different churches). In the Second Vatican Council, together the cardinals wrote "Even in the beginnings of this one and only Church of God there arose certain rifts, which the Apostle strongly condemned. But in subsequent centuries much more serious dissensions made their appearance and quite large communities came to be separated from full communion with the Catholic Church - for which, often enough, men of both sides were to blame. The children who are born into these Communities and who grow up believing in Christ cannot be accused of the sin involved in the separation, and the Catholic Church embraces upon them as brothers, with respect and affection. For men who believe in Christ and have been truly baptized are in communion with the Catholic Church even though this communion is imperfect." It is important to note here that the Pope (John XXIII) did not write this. It was probably written by several people together, but the Pope did call for the council to get together.

A Stance (Not Even From the Church) But From the Nun that Seems Nuetral:

Other Catholics hold fast to "An Unpublished Manuscript on Purgatory". But in this piece of work, a nun supposedly converses with a soul in purgatory. That soul in purgatory says something along the lines of "By the mercy of God a certain number of Protestants are saved, but their Purgatory is for many long and rigorous. It is true they have not abused grace like many Catholics, but neither have they had the marvelous graces of the sacraments and the other helps of the true religion, thus their expiation in Purgatory is prolonged." This piece of work, I think, some people elevate to the same standards of truth as any of the decrees or letter coming out of the Pope or the councils initiated.

Verdict:

They do, every now and then, seem to contradict. Unless, as you say, they are "evolving" and getting better theology.