[Help] Automatic blocking of accounts

[.Santa.]

Hi all!
I have a problem. After I changed the password from the database on my server accounts are automatically locked after a user logs on to them.
In the db account per line, column, "Leave" is changed to 1.
As soon as I change the column "Leave" to 0 and the user logs on to his account, the column "Leave" is changed to 1 again.
Someone knows the solution to this problem?

[JohnHeatz]

Check on your login/logout procedure(s) because that happens when something has been changed in there, maybe if you recently added the dupe fix that might happen