Sounds like a theme conflict issue or some other plugin conflict. It’s working just fine on all my sites, and nobody else has reported this as an issue.
I would need a lot more information, and at least a link to a page showing this issue, since it is not anything I can reproduce here.
Try switching to a default theme, such as Twenty Twelve, to see if the issue goes away. If it goes away with a different theme, then it’s a conflict with your theme. If it is still there, then you will have to go through and turn off other plugins one at a time and re-test until your figure out which other plugin is causing the conflict.
Then, if you send me the info on which theme, or which plugin, is causing the conflict, I can try to test on my system using the same theme or plugin, and see if I can find if it’s a problem with my plugin or the other theme/plugin.