I hope this isn't a duplicate. Similar questions that I found are over a year old.
I have seen cases where shortly after an upvote (perhaps on an old answer?), the summary in my user activity dropdown shows inconsistent counts:
Slid a div offscreen using jQuery answer shows
+40, when it was only updated once yesterday. Now, if this is a monthly total for this question, then it is correct, but when I refreshed later I got:
Now it shows
+10, and other entries completely disappear.
So, what is this supposed to show me? At the very least I am confused about what I am supposed to see here.
Here is another example:
+20 for the same question as before, after I received a single upvote last night. What gives?
You can see from my reputation that there was only a sinle upvote recently: