Help! Farbor shield locked but i have all the keys!

[DarkSora]

Even though i have beat all 3 worlds with the keys, i still can't access Farbor, it says i'm missing Otrav key, but i've won that level already! do i have to play it all over again?
you can see in the screen capture that Otrav is green, but the message is clear. what do i do?

[Grauniad]

Try playing Otrav again from the beginning (Restart). I believe this is due to some weird bug that has something to do with saving. Virgil is working on an update with a fix, but playing through the level again and making sure you pick up the shield key and destroy all the enemy units should fix it for now.

[DarkSora]

Problem was solved by winning the level again, not a game-breaking bug, but it was kinda annoying, like my english :P
Thanks.