Check the discussion here — the G-code needs a few tweaks:
Snorca is “blind” to long time gaps. It processes prints layer‑by‑layer, not by looking ahead at the overall timeline.
When a toolhead finishes its task on a given layer, the slicer simply tells it to park and drop to a standby temperature. It doesn’t consider whether that tool will be needed again 10 minutes or 14 hours later.
So even if a tool is never used again after the first few layers, the slicer still treats it like any other pause — keeping it warm “just in case” it’s needed on the next layer. This is why idle nozzles stay around 70°C for the entire print, even when they’re no longer in use.