Chaotic Swamp level complete bug

I have now completed scene 3 of chaotic swamp 4 times and still it will not let me onto the next one. I've closed the app and reopened and tried level with different monsters but still it won't give me credit for completion so I can move on. Is anyone else experiencing this or is it just me?

Scratch this topic now. Finally after many restarts I have got credit for the level and can move on.