Timed countdown for doubling coins – Dazzling Diamonds Slots Review

I like playing this game a lot, but I've been noticing when it doubles your coins for 2 or 5 minutes, it stops doubling it the last 30 seconds or so. Yesterday, it stopped doubling when the timer got down to 1 minute. It would be nice to have the full 2 or 5 mins, I'm suppose to have. Could you please fix this! Thank you
Review by cs_mn on Dazzling Diamonds Slots.