Oh, there's been some problem with the result strings and actually not all of the combinations got covered :'D So that might be the reason. Have you tried with other combinations as well?
Ok, after trying out a little more, I now got some text for certain combinations. Since there was no feedback for "wrong" combinations, I first thought that the system isn't working.
Oh yeah, I should have added like an error handler but honestly I was in a bit of a rush to complete the game on time. But after the jam I'll polish it a bit.