Catholics are not allowed to be Freemasons? Where do you get your information? The problems with Catholics and freemasons was a few centuries ago. There is a large percentage of Catholics who are Freemasons in the USA.
I get my information from the Catechism of the Church and from its teaching. (I am a Catholic convert.). Until 1983, being a Mason meant automatic excommunication. Now, a person is not excommunicated, but is considered to be in a state of mortal sin and may not receive Holy Communion. There are many reasons for this, which you can find if you do research. Before I converted, I attended a lunch at a Masonic Temple. I did not know all about their practices at that time, but the place totally creeped me out. There were murals of ancient Egyptian gods and goddesses on the walls, and I thought to myself, “Don’t they know the Commandment, thou shalt have no other gods before me?” It just had a totally creepy vibe.
Catholics who are Masons do not know the teaching of the Church, as it has not been clearly taught since Vatican II. Being a convert, I researched everything.