My drop down menu shows a change in my reputation of +1, but when click on the reputation link, the page I am taken to shows a different reputation change.
The last reputation change is from yesterday; there is not reputation change for today. In any case, I don't see any +1 changes. The reputation change show in the latter screenshot is ordered by time.
I also made a little experiment, and I have got the following.
The reputation change still doesn't show any changes for today, and my reputation as for this moment is still 18,709.