Hover stopped working

Hi,

I have been using this excellent plugin for over a year now, but had to scrap my existing image map and replace with a new updated version.

Everything has gone fine, except for the fact that it no longer brings up the popups when hovered over the image map. It requires a mouse ‘click’ instead.

Does anyone know what I may need to change to get this working as it was previously?

Thank you for any help offered.

https://www.ads-software.com/plugins/imagemapper/