checkbox* not working

Hi,

I am using your plugin in default wordpress theme ‘Twenty seventeen’ along with contactform7.

Here, we are facing an issue that while I am used checkbox* for making at least one checkbox required from its group, plugin jump forward to next step without validate it.

can you please resolve this bug asap?

Waiting for your reply ??

P.S: checkbox* is working well without using this plugin. Also active/deactive both plugins frequently but not worked.

Additionally, all the functionality of this plugin is very useful and easy to use. It would be also helpful if there will be progress bar which shows current form progress step by step.