Hi,
Thank you Ernest, I will try again on clean default theme to check and i will let you know.
Also an another point, if you select Masonry for display Frontend Search Setting : on Safari only, Masonry don’t detect the height of <legend> tags and the display it’s a bit broken (it’s fine on Chrome and Firefox). I fixed it temporaly using for Frontend Search Setting Templates, with span and a custom css.
Thanks again for your great plugin !