Heya,
yesterday (before the maintenance) I build some new structures in my home and inserted the Hemo Helot for its cool red light.
This is as of yesterday:

Today (after the maintenance) I come back to this sad sight:

Was something changed with how the light of the Hemo Helot behaves?
One guess on where to start with a probably fix: The glowing rune that is placed below the actual orb only interacts with the actual surfaces of a home (walls,floors). As soon as there is even a carpet in between, the rune will not show. Maybe the entire lighting was changed to interact only with the boundaries of the home itself. See below how only the actual wall and not any of the structures get lighted:

Thanks for having a look!