Ray is correct in his comment on "crown rot" in Phals but it is caused by the same thing in Cyms. The rot starts with water held in the growth, usually the new growth, for too long a period. When the growth slows down, the leaves fail to develop and lengthen rapidly and what I believe is a fungal infection gets started. It can kill the plant or stop with the new growth.
As I was thinking more about your problem, the signs you showed could also come about if the growth were just slightly broken at that point causing it to then die the rest of the way. There would be no odor in that case.
The general look of the shriveled BBs on your plant tells me that prior to your getting it, it had undoubtedly been over watered to cause root death and the resulting shriveled bulbs. The poor plant was trying desperately to survive on the food stored in the bulbs!
Your goal now is to get new growths started ASAP with good culture, which will send down new roots to sustain the plant. Removing the leaves off the oldest bulb, especially if it only has two or three leaves, and thus converting it into a "feeder" bulb might help too. This way, the bulb could give all its energy to the rest of the division and not have to try to sustain its own leaves.
Good Luck,
CL
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