You did not. This is normal for a payment cycle. The number the reward panel shows you is not 100% correct. It is all somewhat estimated. But close to the actual number.
I reckon when payout cycle begins it does a quick check and readjusts the bat number.
And while it’s processing after it calculates the exact value that will get send to your uphold etc.
Most of the times I receive more than any number in the browser shows me.
Like before payout I see for example 6bat. The it says processing estimate 5.3bat. and what arrives at my uphold is more like 7bat.
Now this is not optimal because it won’t show you exact numbers before it arrives at uphold etc. But this is just how it works.
seems odd since I would have thought that when this was created, there was some kind of math calculation the browser program would initiate for the payout and not an estimate.