This is generally a side effect of USB cables and devices which are not spec-compliant. We see the same issue with electrical plugs and wall warts. AFAIK, some

This is generally a side effect of USB cables and devices which are not spec-compliant. We see the same issue with electrical plugs and wall warts. AFAIK, some Yubikeys are not USB size compliant so that they may fit an NFC antenna in that can do sufficient power gathering.