I had that happen with a new 3/4 hose I bought at Fleet Farm.
I saw no warning.
It had a life time warranty, I called the company.
They told me I was not the first person to call them on this and that they had fixed the problem and sent me a new hose free of charge when I sent them the paper work on the label.
I put a new end on the bad one and now have two heavy duty hoses.
One way to help avoid the problem is go to a automotive store and get anti-seize compound used on aluminum cylinder head bolts.
