Review on Patriot Signature 2666MHz PC4 21300 PSD48G2666K by Derrek Fields

I've seen in reviews that people are running it on 2400G systems. At least the kit I got doesn't work with my Ryzen 2200g and 3200g APUs I tested on Asrock B450m Pro4 and MSI B450m Gaming plus with both sticks and separate sticks. The systems do not work simultaneously with both sticks. My other RAM kit, the Corsair Vengeance 2 x 8GB, runs great on both boards and processors. I also noticed a slight flex on both poles. Test the kit with an Intel processor. So I can't say for sure if what I received is defective. Update: I tested the kit on an Intel system with the same results. Both sticks appear to be DOA