Ok let me make it clear ahead first I know that boost only works for 1 game. However it really disappear without effective in the first game after i get the boost.Normally i use it right away once i get those buff but today i take a rest for several hours without playing any game and this happen 
(I play in APAC timezone so i wonder it reset somehow in UTC timezone which is not what it describe as 17 hours effective). I think it really important now to implement the item transaction features such that we clearly know what we have used or spent such that these kind of random event stop happen.
The game i suppose to get the +100% boost
