CMS 1.8.1 - Menue "Session" no data is displayed

No matter what I choose (Active, Guest, Expired), nothing will be displayed. Before it has still worked. But once Date and Type is selected, nothing is displayed.

It seems you’re right, it looks like a bug, I’ve reported it here - https://github.com/xibosignage/xibo/issues/1161

Thank you for bringing this to our attention.