MB User Profile -> Registration form -> validate loses other fields

Hi,

I use the following short cut to display registration form:

[mb_user_profile_register id="dsk-user-registration" email_as_username="true" submit_button="Submit" confirmation="Your account has been created successfully."]

Then a user enters 2 different passwords, an error messages shows this, however, all other custom fields entered are "empty" so the user has to fill the whole registration form again.

Is there not a way to do javascript validation of the WordPress password without losing the other fields, same as with the other javascript validation for e.g. required fields?

Thanks

Martin