Thanks for the reply Casey, it’s much appreciated!
I did a bit of research into problem, I disabled the plugin and the issue was resolved. I have my caching plugin W3 Total Cache setup to manually minify individual files, so I removed each one individually to see which was the culprit. However removing all the files didn’t resolve the problem.
Once I disabled the inline JS minification function of the HTML minification feature this fixed the problem. I figured I’d type this out incase anyone has the same issue running W3 Total Cache and Events Calendar Pro.
Thanks Casey,