Recently had something similar with the Blister-in-Flaw!
Have recently sorted a new defenestrated lappy for the Blister-in-Flaw. Only for there to be an issue with the brand new USB memory stick that was acquired for her at the same time.
I remoted in, expecting it to be the Linux FAT drivers needing installing, but it still wouldn't recognise the memory stick. So she was told to bring it round with her the next time she visited.
On the next visit it didn't take long to realise she was FORCING the USB memory stick in the wrong way up!
Fortunately there was no permanent damage to the memory stick or the lappy, though the USB ports definitely looked a bit distorted when I first saw them.