Ublock add another item is blocked

Just a note if using Ublock in your browser. In the latest Perch 3 Release, if you have a repeater in your form, such as a section to add images for a carousel, the add another button doesn't work. It just shows as the cross with an arrow, no text and is blocked.

This isn't the case in the previous perch, which still functions regardless.

Thought I would post, as searching here when I first came across the problem didn't help and I had to resort to trial and error.