What causes the loss of boosters?
On three occasions over the past two years, I have had all of my boosters wiped out. At first I thought it was an electrical blip that affected only my device -- I lost ALL boosters and gold bars -- hundreds of them! More recently, it has also happened to other players, but this time my gold bars did not disappear. It seemed to coincide with an upgrade where they brought that silly screen-shaking feature back. Is there any way to get boosters back after such incidents?