I think there is a minor bug in the pagination of answers on the user page.
You can see it on my profile page now.
At the time of writing, I have 63 answers which results in three 30-line pages. However, since answers to the same question are rolled up into a single "answer line" in the list, the actual number of pages should be two, since I have a couple of questions where I provided two answers and one with three.
Now I have an empty last answer page :-(
When rolling up answers to the same question into a single line, I suspect that the number of pages is calculated wrongly, because it uses the total number of answers provided. It should count the number of questions answered instead.