Issue: Polylines Cannot Be Deleted

Hi

I am using a free version of your plugin. I’ve added two polylines so far. Now I want to delete the first one but it doesn’t let me do that. Once I click the “x” button next to the desired polyline – nothing happens. Another button “edit” works fine while the “delete” button seems to not be responsive.

Can you, please, help me fix this?

https://www.ads-software.com/plugins/google-map-wp/