Item sets won't show in game

Can anyone help me get my item sets working in game? My item sets are set up to specific champs and summoners rift and as far as I'm aware all my items are suitable for the map, but when I hover over the item it says "This item is not available on the following maps:" and doesn't tell me which maps.

We're testing a new feature that gives the option to view discussion comments in chronological order. Some testers have pointed out situations in which they feel a linear view could be helpful, so we'd like see how you guys make use of it.

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