I took many pups off my sago this June. I let them harden off and planted them in appropriate size pot with soil that drains very well. It is now November and I only have one with green leaf. I have many more with new brown fonds?
Sago Potted Pup Quit Growing
Certified GKH Gardening Expert
This can happen if the potting material stays too moist. This will cause a rot issue, and will stop all rooting. Gently remove them and check to see if they have rooted. If so, replant them. Watch the watering while they are trying to form roots. The soil should be slightly moist.