post excerpts not showing up on mobile

Hi

I have my Wordpress to show excerpts on my Settings page and I see it doing that when I access my site on the computer but when I access it on my phone I get the entire post showing up. On the computer, I see the excerpt and the "more" button. On the phone, I don't see the "more" button. Can you I get some help on what I am doing wrong here?

My site is talesofawesomeness.com

Thank you!

-- Kieun