In the newest snapshot, 24w07a, while making a world, by navigating to the World tab the World type selector box has an extra colon in between the two terms. Nothing major just very OCD triggering.
MC-268583
Extra colon in the world create menu.
Resolved
Awaiting Response
0
I cannot reproduce this. Please check that you have not applied any resource packs and that you are using English (US) in the latest snapshot version.