We progressed one empowered monotlith together and challenged the Boss as we both had enough stability. Only the host got a “gaze of orobyss”, the coop partner was denied of all stability without getting any Progress. This must be an oversight/bug.
Either the coop partner can “help” with the boss and receives no reward or you withdraw the stability and give the coop partner a “gaze”.
The System at the current state is a massive waste of time for the coop partner.
As Workaround the split the group for every boss fight and doing it solo…