Hello!
I created a few races that I wanted to use for a new campaign in the future but I wanted to create a character for a specific race I made. Whenever I go to Character Builder, only one of the races is visible while the other is not listed there, even though I enabled the Homebrew content on the character builder page. I'm wondering if maybe I did something wrong in creating one of the races or maybe there's a bug in the site? 

Is the race a base race, variant, or subrace? Unless you post some screenshots of your setup the general community can't look at the race to figure out what is keeping it from showing up. You will need to post the url for the race for moderators to look it up and fix it if needed.

Thanks for the reply! The race I made is a base race. I just figured out how to post images on here, so I apologize for not posting the images sooner.

This is the race that doesn't come up. https://www.dndbeyond.com/characters/races/21104-vynae

You have "Will Have Subraces" checked on Vynae. When you set that, the base race does not show in the builder, as it will try to show the subraces for that race, which, you have not yet built any subraces (Like how there is no base "Elf" in the builder).

Fixed it! Thanks for the help!