Are you talking about the YouCat Catechism, the U.S. Catechism, the CCC, or something else?
I know I've read in the news that the first two have had dire problems that had to be revised. Direct heresies if what I read was correct. Don't know if there are any more, I have not read them.
Safer to read older catechisms in these times, they've been through the revision process. And aren't designed to be socially acceptable.
Perhaps use a search engine?
These aren't debate forums and these sorts of questions usually provoke them so normally they aren't dealt with here. Are you involved in a debate somewhere?