multi select categories frontend-[Solved]

I use flexicontent 1.5.5 y flexiaccess.
I had already managed to do that, but now I do not get to do again.
I created a menu item to send items in the frontend.
The frontend should display a list with only three categories marked for the user to choose the categories that interest him.
But in the frontend are displayed pre-selected categories and not to select.
In flexiaccess (backend and specific), the user already has permission to select multiple categories.
[attachment=1:srqt95ax]<!-- ia1 -->amultcatfront.jpg<!-- ia1 -->[/attachment:srqt95ax][attachment=0:srqt95ax]<!-- ia0 -->amult2.jpg<!-- ia0 -->[/attachment:srqt95ax]

I did three tests and all worked.
I speak of flexicontent 1.5.4 and 1.5.5
When creating a menu item to submit articles in the frontend in the option "Submit articles in" I choose "Multiple categories. "
But when I send an article as sometimes not let you choose the category in frontend.
So I changed the version of flexicontent. Changing the1.5.4 to 1.5.5. Or vice versa.
With this change and could choose the categories to submit articles.

Hi,

May be this post could help you:
flexicontent.org/forum/index.php ... =viewtopic


Regards

Yes, this user has the same problem as me.
But I have not understood the solution.

By overriding the form.php ( flexicontent.org/forum/index.php ... &rb_v=file ), it doesn't work?

When I Change the file "form.php", the categories are display (in the frontend) each one in a radio button. To permission to multiple selection would be a textarea.
The problem persists.