"There was a security error when trying to login" - v1.3.9c

I've seen the threads for this problem in v 1.3.8, but only partially applicable threads for 1.3.9c. I just upgraded from 1.3.8 to 1.3.9c and now customers cannot login. They get the security error message, but I can get into the admin panel without problems. I am also using Numinix's FEC module. Not sure if this has something to do with it.

I have tested across multiple browsers, Firefox, Explorer, Opera, and Chrome. I get the same thing in every instance so this that leads me to believe this is a different problem than the one being reported by other users.

Anyone have any ideas? I opened my template's tpl_login_default file and the stuff about the password is there.

Record Sessions is set to false. No luck with that fix.

http://www.zen-cart.com/forum/showpo...2&postcount=12

Also scroll down to the bottom of this page to see related threads

Frank Your Awesome :) :clap: