After teleporting to a different location in a world created in 21w07a, the game crashed. I don't really know what has caused this. Reopening the world allowed me to play as usual.
The crash report is attached. The world file is very large (277.8 MB), so I've attached a Google Drive link instead. Note that the world was used a bit after the crash.
Description: Exception ticking world
java.lang.IllegalStateException: Chunk not there when requested: Unloaded ticket level [-301, 1517]