After updating the them and the Visual Composer and Revolution slide plugins, I noticed that the Revolution Slider back end stopped working.
The slides still work in the front end, but when I go to the editor to change bits of text, the following happens:
1. I can’t see my text layers, just the background image.
2. I can’t add new layers or see a preview
I already tried un-installing the plugin and downloading it from your Downloads section and got the same result.