Empty index page

[Alexey_Shpak]

Hello

Plesk 10.4.4 ,update #58
Web Presense builder 10.4.4

I can see index page in browser.
But can't in builder (i saw left and right column, but empty center page)
If I replace index page (move it) and publish,
I can't see in browser (empty center page)
and i can find this folder in server and valid index file.
if i delete all files and restore from backup, I can see old valid page, but empty center page