hey i have the newest version of the game but the mermaid kingdom is still not accessible on the save i brought over. i bout the game from patron btw
update : i even started a new game on the 17:11+ fix and the mermaid kingdom entrance (where you drop) is still not showing a arrow to tell you where you drop down at.
As said before:
"Only in beta builds (Steam / Patreon / Subscribestars have it)"