Schlumbergera is a succulent and rooting them in water is not a ideal method. Typically, the recommendation for rooting succulents is to allow the broken or cut portion to callus over for a couple of days and then plant in moist perlite or sand.

Thank you. I'll take that under advisement. I can trim back to a good-looking place and start over.

Schlumbergera cuttings root better in slightly damp soil than in water. The segments rot fast when they stay wet on the cut edge. Let the pieces dry for a day so a callus forms, then place them in a light mix and keep the soil barely moist. Bright indirect light and stable warmth help new roots form quickly.

Do you have a pic of your attempt? This has been in water for years. Full of buds again, right on schedule.

No.