Password Reset not working

I’ve read all the other support posts about Ultimate Member’s Password Reset not working and it’s quite surprising how many people have run into this issue with no solution that works for most everyone.

This Support article was helpful in trying to figure this out – https://docs.ultimatemember.com/article/1518-password-reset-doesnt-work

In my debugging, I might have discovered a possible reason why Ultimate Member’s Password Reset is not working. After requesting a new password from UM’s password reset form, I opened the reset link in the email with the browser’s developer tools open to view the Headers that are loading. In the “Response” header list, there is no Set-Cookie listed. However, in the “Requested” headers list a Set-Cookie listing matching the correct format for the reset-password appears but the expiration date for this cookie is in the past, not the future. A browser cookie with a expiration date in the past is automatically removed from the browser. So I’m wondering if this is why the Password Reset isn’t working, is the browser cookie being set with an expiration date in the past causing the invalid key error?