CFS doesn't recognize 4th slot, D1. A1-C1 recognize the filament and pull it in, but slot D1 never does

K2 Plus CFS system isn’t working for the 4th slot. Using the provided RFID filaments. after 2 successful two color prints, slot 3 is not working as well. Even after manually pushing filament in, it never gets picked up.

I am having the same problem. Have you had any luck getting it to work. Mine worked the first time I loaded the slot but it lost the setting after a short while, not sure when, maybe when I powered down and started back up.

I am having an issue where the creality print doesn’t recognize the spool/color. The cfs itself reads the filament and feeds it properly and shows it is ready with the indicator light. But on creality print it doesn’t show there is a spool in that slot. It is a cardboard spool but it has treated edges. Event with the printed caps, it still doesn’t recognize it.