I agree with Hetty!
I would wait a couple of weeks before potting it up again. And make sure you are not over- potting and you are using a potting medium which drains super well. No plastic pots and no real watering until growing season starts again. ( unfortunately you don't give your location.)
As a last resort - I had ( have) an Adenium tree, I always thought it was a somalense x obesum hybrid and I used to top it off once a year at about 6 foot. Had it for years, growing it from a small baby plant. Then I noticed some rot at the foot of the trunk. I took it out of the pot, cleaned it, waited a few weeks and potted it up again. It was ok for another year and then the same happened again, this time the plant was doomed. That was in the Spring of this year.
In a desperate attempt to save it, I chopped off the top branches and dumped them into a bucket of water. That sat the whole Summer on the deck. By Fall some of the pieces actually started to green out and - upon closer inspection they also started to show small roots. I potted up the whole thing, several pieces together in the same pot! So far so good. I also added some small Senecio fulgens pieces, in the hope that down the road they might mop up some extra moisture to prevent another rot-attack.
