I have been troubleshooting as to why the Soliloquy Slider plugin seemed to fail when trying to add new images. When clicking on the 'add new images' button, nothing would happen. I checked the error in Chromes Console and it gave me the following:
Uncaught ReferenceError: QTags is not defined
I then disabled all plugins one-by-one to locate the plugin that was causing the JS error, and found that it was the Hana Code one. I have been a huge fan of the plugin for a while now and have used it to embed over 100 videos into some of my sites in the past, so would hate to stop using it.
Do you have any idea as to why it would prevent JS from being executed in other plugins? Here is the conversation I had with the dev for Soliloquy which may help troubleshoot. Comments at bottom of page