Java Lucky Islands Did I just discover a lost map?

[LivingLuckyBlock]

So I was playing Lucky Islands, and upon joining another game, I spawned in some map I never played before. After a little digging i found out this map must be some variation of Art map which supposedly used to be a 4x2 team Lucky Islands map... except this one looks like its for 12 players??

When the game started, I could not break or place blocks. I just saw the chat go and that was all I could do. All the other players probably played on a normal Savannah map while I was stuck there. I ended up winning since the last player fell to the void. I attached all the screenshots I made.

There is probably not a high chance of this happening again, but maybe it should be fixed. Did this happen to anyone else before??

 

[Laura]

Cube seems to be having issues right now where it sometimes fails to put you in a game properly, and when this happens you sometimes teleport to the default spawn point in that world.
In this case, the default spawn point is on an old map / test map of some kind.