Thanks, Arnie, for adding the most important point to the conversation.

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I am not sure if LDW would call it a bug. It's more like being out of bound. Perhaps a tad too close for where we, the players, would consider the boundary edges of the game.

The only way for it to keep repeating, is by you manually dropping him between the waterfall and the wind flutes. It's not possible for the peeps to get there by themselves.
Anyway, now I have a place to put the naughty ones.

I run the same OS as you.