Fixed a bug on level select menu

A=B · build 8477109 · published 1 Apr 2022, 00:09 UTC

On SteamNotes only · this build shipped before we watched the app

What caused the bug is:
An easter egg was written for April 1st months ago.
But the game structure changed a lot since then, it became a null reference.

Sorry for the bug.
And sorry for the spoiler.