Left menu Anchors

Hi,
I have an issue with some anchored links. The left menu works prefectly with # anchors links as external urls on the front page.
However, when in an article page, as soon as there is a # in the links, it stops working.
I checked many joomla forums about this problem and did not found anything.
Can you help me with this ?

Could you please post an url to your site where I could see this issue?