page builder on a page. I cannot re-edit the page!

hi,
i’ve got a big problem. I’ve edited a page with page builder, and then I’ve saved and published it. When I go for re-edit the page, I find html code in visual or text mode, but if I try to re-edit the page in pagebuilder mode, I find only one widget, in only one row that contains all the content, wathever I built several rows and several widget per row!

In one word, I can’t edit a page built with pagebuilder!

If I only open and then save the page without doing any change, the page in the frontend will loose the pagination I built with pagebuilder! (for example when I put 3 imgs in a 1/3 col row, i will find the image not in a row but one per row) .

I put a page in the “issue url” but until I won’t go in editing this page will works fine. It’ when I try to edit that the page loose every pagebuilder configuration

Thank you for your help!

URL: http://www.mobilitypress.it/benvenuto-a-catania/