I'm running in this issue for two separate accounts:
I would use the "Forgot your password?" link on login.salesforce.com to request a password reset link to be sent to my email.
However, every time I click on the password reset link in my email, I see "Your reset link expired after 24 hours or has already been used."
This has been going on for weeks and I can't help but wonder if this is a glitch on Salesforce's end. What is going on?