Hit the "Next entries link" (bottom).
Vote in one of the entries there.
You just lost your offset and you're back in the original page.
I didn't know what to do with this information, so I posted it here.
In reply to After voting, you go to the wrong place by cog
| For: | Use: | ||
| & | & | ||
| < | < | ||
| > | > | ||
| [ | [ | ||
| ] | ] |