Judging by what you have said, what others have said, and my own personal professional experience with the chain, I’m inclined to think you may have gotten a “bad batch”. Not all that surprising with Chinese manufacturing and quality control.
I’ve found the dukes chains I have here to be somewhere between Oregon and Sthil quality. Not quite as durable as Stihl RS but close. Is it old school rsk nah but that’s pretty much the pinnacle. Definitely better quality than the stuff I’ve used from Oregon in the past. Quite frankly I stopped using Oregon because it has become soft garbage.