Help with Potinara Burana Beauty 'Burana'

[LovePhals]

Here is some pictures of my plant. It didn't look very good when I got it in flower and it looks worse now. I repotted it right away into the smallest pot I had in an open medium of clay pellets. I am keeping the roots just moist, with a few applications of seaweed extract to try and initiate root growth. It is in a sunny south window with afternoon sun.
It has very few viable roots which are all on the healthiest bulb. It just got down flowering. It hasn't done much in the last month but the leaves blackened and will fall off soon. I am very familiar with black rot and the blackening is just the leaf dying off not black rot. The bulb attached to the darkening leaves is now turning yellow. I assume b/c that bulb has no roots. It may just be dying back from the lack of roots but want to know if there is anything I can do to help the plant stay alive!