I just updated Visual Composer to the latest version (recently updated Legenda also). It was working fine for a little while, but when I finally needed to add a Single Image box, I ran into this issue. I can click the Close button and the little editing pop-up closes, but when I hit the Save button nothing happens and the little VC logo back on the main page turns into a spinning ball that just spins forever. I think the Single Image is the only element I’m unable to save, I only tested a few others but they worked. I deactivated, deleted, and reinstalled VC but it didn’t help. I had also updated one other plug-in during the course of the day, so I thought maybe that could be interfering. but I deactivated it and it didn’t resolve anything so I just turned it back on.
Help?