I had the same problem with my Catt Silken. It was too top heavy in a 4" pot and I lost count of how many times it got knocked over.... plus a combination of over watering and burnt the roots with too strong ferts... all novice stuff from too much fussing
the leaves lost their luster and looked abit wrinkled, and the last viable root lost it's green tip and shut down!
I thought that was it for my Catt and fed up with it falling over I repotted in in HUGE 15cm pot with just medium bark, staked it in dead roots and all and dumped it in a south facing window and ignored it!
Turned out to be the best thing I could have done
in just a few weeks it's shot roots all round the huge pot, I can see them winding round the bottom and green tips appearing all over the show... And it reactivated the tip it put to sleep, plus then started new leaf growth!
Almost killed with too much love... Then saved by bad potting practice and neglect!