Double flag bug

[Rolv.]

I have just used the double flag booster on a 14% luck flag and the result was 0% luck, It happened to me before...
I spent the flag and the booster for nothing and lost more troops than I should have

 

[shraman]

you should have read up on what the luck flag does beforehand.
the luck flag doesnt actually increase luck, it just brings the luck as close to 0 as possible.
for example: A 14% luck flag means that 15% luck will become 1%, -18%luck becomes -4% and so on.