While I wish I could say that our plugin seamlessly integrates with every other plugin out there, the reality is that with the sheer number of plugins that exist, and each one having so many settings/options, that it’s nearly impossible for us to account for all of those.
On the face of it, it appears that there’s some kind of Javascript conflict that’s overriding the prev/next click events for the calendar. I would recommend reaching out to the developer of that particular plugin to see if they can help you troubleshoot further.
We’ll be happy to answer any questions the plugin developer might have as they’re investigating further. Thanks! 🙂
-Casey-