Using SXA 1.2 rev. 161216, rows and columns sometimes disapear from pages.
By this I mean that the Row Splitter component still exists and its content is still visible in the design layout menu.
When I add a row using the + button to the corrupted row splitter, the hidden row that was here before comes back. Video : https://www.screencast.com/t/XDHSMXTje
This is very annoying since this breaks our work. Does anyone have a solution to this ?