I have a bit of a strange issue, I am currently building a site theme. I came to start testing today however when I created a new page I cannot drag and drop any of my custom modules in. They just don't appear when dragged in.
As I have been developing the theme I have created a number of test pages and this has not been an issue and I have not made any changes to the templates since then.
The pages I have created in the past still work fine.
Has anyone experienced anything like this before, I'm not too sure how to go about troubleshooting this so any advice is appreciated.