“Show me a non Catholic faith and I will show you at least one error.”
And what might that error be?
Hmmm... There are so many -at least as many errors as there are errant faith knockoffs.
There is no collective salvation -there is individual salvation. So -do not ask me the question as to what is wrong with your faith if you are not of His Catholic Church. Find out for yourself what is any difference that necessitated a departure from truth -it is your salvation at stake not mine.