Earnings and post glitch, or not?

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Does this happen to mylot users from time to time. I have noticed from the past few days that the number next to my name goes down. This has been happening from time to time. Also, my earnings yesterday were exactly at $14.25. Today it went up to $14.82 but I checked my account earnings and I shows that I've made $0.86 cents from yesterday. If you calculate this, it should be $15.11 by today. Has there been a glitch? I know for sure that it should be more. Thanks!