playing Anodyne, stuck in Red Sea

[Ligeia]

I recently installed Anodyne on my Switch, it worked fine (love the game btw), but it seems I'm having an issue now : the fifth cave (north cave) in Red Sea won't appear.

I freed the third worm and no cutscene played and the fifth cave didn't appear.

The only reference to this I could find online is this, which is not very helpful : https://gamefaqs.gamespot.com/boards/703139-anodyne/67519346

I did "look harder", found the jump upgrade and the biker lady card etc, but the red sea north cave still isn't there and I'm completely stuck it seems.

Is it a bug and do I have to start over ?

 

[Ligeia]

I found the solution, of course it was some silly oversight, I'm writing it down here in case someone else has the same issue in 5 years lol :

Just do the western cave ! There's another worm in there !