Wind Waker - Tower Platforms

[likentro]

So a couple of the platforms that I've defeated the turrets and enemies, according to the walkthrough should have appeared a treasure chest with Treasure Chart #44

However, either chest chest did not appear. I've gone through and checked, all turrets were destroyed...am I missing something?

 

[Ventus]

However, either chest chest did not appear. I've gone through and checked, all turrets were destroyed...am I missing something?

Are you sure that you hit every single platform? There is one next to the gull island, the one where you typically use the hyoi pear, and that one is the one thta I personally missed.

 

[likentro]

I thought they appear for each individual one that you destroy? Some have after I destroyed the turrets, the chest appeared, then I could just climb up and defeat the bokoblins before collecting the treasure chest.

Edit/Update:
So the walkthrough states: Just south of Horseshoe Island there are a pair of platforms. Use your bombs to eliminate the turrets and then climb either of the platforms. Defeat all the enemies and step on the floor switch to cause a treasure chest to appear on the opposite platform. Head on over and defeat the enemies on the other platform and step on another floor switch, causing a treasure chest to appear on the opposite platform. The two treasure chests contain Treasure Chart #43 and a Golden Feather.

I received 20 rupees and a Golden Feather. I did not get a treasure chart. I have not received any charts passed #40 - is there no more than 40 in the GameCube version?