SVG floorplan "unreliable"

I’ve set up a floorplan and it kind of works although it does not work :slight_smile:

What I mean is that the svg overlay, the light, only seems to work certain times. Sometimes I can only see the ‘on’ state and some other times just the ‘off’ state, some times I don’t see the overlay at all.
If I try with a really simple svg, things are better but as soon as I start adding a few lights and a few walls, it is really unreliable.

I can’t see any errors in the logs nor in the browser console. Is anyone having simular issues?