Playback of repeat until coda not correct

I have mad a rondeau in musescore. As with every rondeau it has one central theme which is repeated amongst several chapters. However, I cannot seem to get the repeating right. You can find the score here:
http://musescore.com/user/25889/scores/46070

The first two repeats (marked 1. and 2.) work fine, but on the third repeat (which is a "al sengo/to coda" object masked as the text "rondeau") things go wrong, as does the forth and fifth.

At the hidden coda, musescore seems to play at two places at once, At the designated location (marked as sengo3 though 5) AND at "2."! After one measure, the playing of 2. stops and everything works as it should.

I've tried several places for the hidden coda, but nothing seems to work. Please help me.