Different customers with same email address

[vera]

I am able to register two customer accounts using the same email address. It only gives me a duplicate email error if I try to edit the profile info in My Account, but not at the registration screen. Any ideas?

I'm running the latest version of ZenCart and split-login module, if that helps.

[kobra]

I just tried this in 1.3.8a and got the following error

Our system already has a record of that email address - please try logging in with that email address. If you do not use that address any longer you can correct it in the My Account area.

Looks like you might have a corrupted file or an override that has broken this

Try switching to the classic template and see if it is template related