Oncidium Wildcat 'Rainbow' help!

[Draculaa]

Hey there, a couple days ago I found this orchid at my local box store. It caught my eye as it was a single Oncidium amongst a crowd of Phalaenopsis.

I did buy it in bloom and it currently still is, but at the end of this spike's cycle, with some flower 'deterioration'.


There's an album of some of the worries I have with this flower. First of all, is that the pseudobulb is shriveled and darkly spotted. This is also apparent on a new pbulb that is growing. Leaves are also dotted black - somewhat reminiscent to me of a bacterial infection (hopefully not)..

Also, this orchid is potted in Sphagnum moss. I wanted to wait until the bloom is done to repot it but if need be I can do it ASAP.

I'm basically looking for some diagnosis/prognosis on this orchid. Thanks!