Hi,
can you please send me your site link to check this?

In this page you have several javascript error caused by 2 login forms, see screenshot:
- the first registration form is in the page (not displayed due to javascript error)
- the second registration form is hidden in the dropdown menu (top right)

2 registration form mean that for each field you have a duplicated with same ID.....this is a html error.

The solution is to set the "Create an account" link in the top bar as a simple link in the registration page. Probably this is possible with Joomlart configuration, otherwise you need to contact their support to explain how to do this.

Why without Easy Profile works? because Joomla does not use tabs generated by javascript, so it works but the HTML error is still present (of course without consequences).

Hi,
sorry for late reply, it's a weekend

No sorry, these modules does not uses well Joomla user plugins. Anyway we are working to add a registration/edit profile module for the next release, so something like this could be possible, for example you can add the module instead the static form with template overrides.

For now if JaLogin module works well in the other pages then you can use 2 modules:
- first JaLogin module with registration dropdown visible in all pages except in the registration page
- second JaLogin module without registration dropdown visible only in the registration page