Product: E-Notebook Enterprise
ELN Navigation buttons (Top Left Home, and Arrows buttons) are inactive/disabled while working on in any child sections type.
If we click the mouse pointer in the open space on the same window - the navigation buttons get active again.
This is a known architecture issue and has been fixed on E-Notebook 18.1.1.
Note: If you still need assistance, contact support at firstname.lastname@example.org