When editing text in Upfront, I'm unable to change my text's type element.

Hi there! I'm just learning how to use Upfront; sorry if this is a noob question.

I'm attempting to make a line of text into a paragraph header by editing the text in Upfront:

I double-clicked the text to select it, and the text editing toolbar popped up. Then, I clicked on the type element button, which brings up the drop down menu (paragraph, H1, H2, etc...). When I select H1, nothing happens.

I have installed a Google font that didn't come with the Panino theme I'm using. I don't know if that has anything to do with the problem or not. The drop down menu does reflect the Google font I uploaded, however, so it seems unlikely that it's the Goggle font that's causing the issue.

I've turned on access for you, in case you need it.

Thanks for your help!