Nozzle not cleaned when changed

[terjef 0]

Printer: S5 w/material station and air manager.

Software version: 8.3.1

Problem:

After finishing printing with white filament using a 0.8AA nozzle.

The next  print-job was also assigned the same white filament, but I changed the nozzle to

a 0.4AA nozzle which previously had printed black filament.

The printer detected the nozzle change, but failed to understand that the changed nozzle had to be cleaned before starting a new job.

This resulted in a couple of black layers in the printed object before the content of the nozzle changed to white.

This should be easy to fix in the software.

[glx 27]

The printer doesn’t know (or care?) what was previously printed with a core. It’s the same if you change the Printcore on a standalone S5 with material loaded, the only way to prime it is unloading the material before or after the swap and let it reload it, so it initiates a priming sequence. I’m also doing this with the Material Station attached, just click "unload" in the material settings and then change the core.
But I’m in the same boat and think it should always prime the Printcore after a swap no matter what was loaded before since the cores could be laying around a while (or are new and don’t have anything in them).