Recently, when i re-installed my desktop OS, the time was not synchronized properly and i could not notice as just few seconds difference. So I was not able to login to many of my accounts with 2fa codes (even tho i had full access to seeds and 2fa codes as well), there comes the Recovery Codes, i was able to login to those accounts without any issues. So no one knows when we have any kind of unknown errors, having a backup plan is always good.
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