I am facing the following problem.
I have a custom template for registration so I copied register.phtml from Customer module to my own folder. All works perfectly, but the validation error messages.
Curiously, the only message that was translated into Spanish was "This is a required field.", however, these other messages are not translated: "Please enter a valid email address.", "Please select an option." and "Please enter the same value again.".
Can you help me to solve this? is this a Magento bug or whatever?
P.S. of course, all of those messages exist in es_ES.csv file.