What might cause a Yubikey to malfunction?
I have this old Yubikey 5 NFC I brought back in 2019. I have recently experienced two times where it malfunctioned. I leave my Yubikey connected to a USB keyboard with integrated USB 2.0 hub, which is futher connected to a Anker USB 555 hub that is connected to my Steam Deck. This hub passes power to my Steam Deck. These two times I come back to it unresponsive and when unplugging and trying again it would rapidly flash, not showing up. Once in this state it would behave the same for trying in other devices like on my Android phone with a USB-C to USB-A OTG adapter. However both times, if I left it unpowered and disconnected for an extended time it would recover appearing to function as expected.
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I wonder if possibly there's issues with power fluctuations and it kicks the Yubikey into some "bootloop" with the chip. Or if this is a sign I should back up the codes and get a new one.