The Bug:

A maximum of thirty-two characters can be inputted into the "Invite player" field despite usernames not being able to exceed the sixteen character limit.

Steps to Reproduce:

• Navigate to the minecraft realms menu.
• Click on your realm and hit the "configure realm" button.
• Hit the "players" button.
• Hit the "invite player" button.
• Type a name that is longer than sixteen characters.
• →  Notice how a maximum of thirty-two characters can be inputted into the "Invite player" field despite usernames not being able to exceed the sixteen character limit.

Expected Results:

The expected behavior would be that you are only able to input a maximum of sixteen characters as usernames cannot exceed this limit. This could be considered as a feature request.