When opening the Realms menu, the popup that says "Realms is a safe, simple way to enjoy a Minecraft world with up to ten friends at a time. It supports loads of minigames and plenty of custom worlds! Only the owner of the Realm needs to pay." doesn't have an X button in the top right corner so I am unable to close it. This issue persisted even after uninstalling and redownloading the entire Minecraft launcher. I even tried changing languages on my client and that didn't successfully resolve anything.
The pending invites, buy a Realm, and Realms news buttons continue to function as expected. When I hit the tab button, I am able to select some green text behind the popup. When I click enter, the "What is Realms?' button appears but disappears again when I click it.
For additional background and context, I am currently in two Realms, one active and one inactive. My Realms menu was perfectly normal on February 22nd, however I encountered this issue while trying to play for the first time on February 23rd. Between then, I did not update my game or launcher once. All help is greatly appreciated, I just want to play with my friends again. I am capable of suppling additional video or photographic evidence upon request.
Duplicate of REALMS-2288, which was later resolved as, "Works As Intended". See the comment by @unknown on the parent ticket for more information.