the CFS I got with the Sparkx i7 will not retract the filament.

The cfs will not retract no matter what I do if I want the change the color I have to shut off the printer and manually pull it out. This is happening out of the box and is doing it to all the channels.

But it does feed the filament normally (both when inserting it and when starting a print)? Just doesn’t pull it back?

That is right it doesn’t retract unless I manually pull it out.