Moving the aggregate out of render fixed the first frame, but the work
itself was still one uninterrupted ~1.5 s task on the large-house
fixture — the interface stayed frozen, just a moment later, which is the
same symptom the issue reports. cleanFloorAreaSteps yields after every
room; the runtime advances it with an 8 ms budget per frame and
reschedules until it finishes, so no slice outlives a frame and the
skeletons stay until the number is ready.
The smoke now watches longtask entries for the whole show, not only the
first frame: a single long task while the values are computed fails it.
Issue: #509
User-Visible: no
Codex
588ef42546