We encountered a problem with the rich: suggestionbox component in the IE 8 browser.
When the suggestion list appears and the user clicks on the suggestion, but on no list item, the suggestion is "closed" (disappears), however it remains present. I was able to see this using the IE debugger.
The two figures below illustrate the scenario:
After that, in this area delimited by the blue line no more mouse click. Has anyone ever come across this and solved it?