Adding 2 Yubikeys to Binance

Has anyone tried this before? I am afraid I might get locked out of Binance.

I recently added my Yubikey to Binance but I came across other post with people telling that they got locked out of their accounts with Yubikey. Not sure how this happened?

https://www.reddit.com/r/binance/comments/m38b8y/yubikey_pin_locked_out/

https://www.reddit.com/r/yubikey/comments/m0j4vh/binance_technical_problem_for_people_using_yubikey/

While in the process of adding the Yubikey to my binance account, I was asked to make a pin. I was not provided a pre-created pin unlike what happened to this guy where Windows told him the pin to add:https://www.reddit.com/r/yubikey/comments/m199gr/binance_yubikey/

So I made a new pin. Is this pin only for Binance or is it for the yubikey itself???

Did I do the process right?
Also there are reports of people being locked out with Yubikey + 2FA:
https://www.reddit.com/r/binance/comments/lzsod4/yubikey_problem_illegal_parameter/