I am currently using Version 3.4.6 of Better WP Security.
My issue is as follows:
A user has decided to reset their password, and they follow the reset password steps as per normal. After they have clicked on the link from the auto generated email and entered in the new password twice, when they click submit they are given a 404 error.
I have tried disabling the hide the backend feature and this has not helped.
This issue is not present if Better WP Security is completely disabled.
I have tried the developer version, which has not helped.
Also tried various things that others had tried for similar problems.