Password reset link appears to be invalid

[subrataemfluence]

When I try to reset password from wp-admin I get password reset email. But when click on the link WordPress says:

Your password reset link appears to be invalid. Please request a new link below.

WordPress: Fresh 4.9.6 install.
Active plugins: Akismet Anti-Spam and Hello Dolly.
Hosting provider: GoDaddy shared hosting

Apart from that, when I tried my username I do not get the password reset email, but got it when used my registered email address. But it is always saying invalid.

Interesting thing after tried for several times, suddenly the link is treated as valid and I could change the password successfully.

Not sure whether it is really a core bug!

Screenshot attached.