Webinar Staff "add to calendar" link for Google Calendar and Outlook ?

I'm testing out the best way to create a webinar series.

I've created it how I would need it to show for my real event coming up in a few months but when I test the registration, it doesn't give me an option to add it to Google Calendar which is going to be missing a large chunk of our audience.

I've chosen the option to have them register for all sessions at once. It only shows the options for "Outlook Calendar" and "iCal."

Is this a glitch that can be fixed?

Here's a screenshot. Same thing on the registration page, right after submitting registration info.