Hello,
I’m sorry that you’re running into this issue, but I’ll be happy to see if I can help you out!
I would first recommend adjusting the “Default stylesheet used for events templates” and “Events template” settings under Events > Settings > Display. These affect how much events pages inherit their styling from the theme. I was not able to find the month view on your site, but I tested this using our demo site wpshindig.com, and the month view was showing up correctly there.
If adjusting the settings doesn’t make a difference, then you may need to add some CSS to get things integrated correctly with your theme. We are limited in the amount of support that we can provide for customizations like this, but if you get stuck or have any questions, please send me a direct link to the month view on your site – I’ll be happy to try to point you in the right direction!
Thanks,
Jennifer