My charger suddenly stopped charging my iPhone!

I tried to charge my fairly new (less than a year old) iPhone with the charger it came with but it wouldn’t charge it. It was charging and working completely fine before. I’ve recently noticed that it charges when my iPhone is completely switched off and when I use it to charge other apple devices. My iPhone charges completely fine with other charging cables but not it’s own that it came with. I’ve tried everything from cleaning ports to removing oxidation and changing plugs. At this point idk wether my iPhone is damaged or my cable charger since the work well with other devices or chargers but not together.