[Observium] Huge list of groups cannot be displayed with onMouseOver

Hello,

I'm using version 19.9.10036 which is the latest stable version

I've defined a huge list of groups. It apparently creates a display bug with the onMouseOver function

When the list is too huge, all the groups cannot be displayed

This is not a blocking point because I can just click on the "Groups" symbol to have the full list . but this is annoying

Best Regards

Thibault