Call-to-Action Widget Hangs on edit after saving.

Hi

(using the Sydney theme)

The Call-to-Action Widget is hanging after you click “edit” on a previously saved CTA widget.

1. Within the page builder, add a CTA Widget within a row
2. Set the appropriate info in the fields (url etc) and save page
3. Go back to “Pages”
4. Select the page where you’ve just added the widget
5. Click on “edit” on the CTA Widget added in step 1
6. The right hand column loads and works but the left hand content never actually loads.
7. All other widgets work fine

Steps I’ve taken:
– Cleared caches & history
– Disabled all other plugins
– hard refreshed page
– used both Chrome & Firefox browsers
– fixed and optimized mySQL database

Thanks