Sunken white and brown marks on Oncidium Twinkle psb

[mvmgems]

A few months ago as I was first getting into orchids, I found out about Oncidium Twinkles and realized that was the type I had been gifted in college (and lost when I moved). I then read they were easy to take care of and they seemed commonplace, but I couldn’t find any in any of my local grocery, hardware, or nursery stores.

I then mail ordered this from Etsy (and have since found out I overpaid, at $40 + shipping). It came with an unbranched spike and three small pseudobulbs with what looked like scuff damage.

The marks have since increased in area to cover all surfaces of each pseudobulb, and one near the base on each side of the largest have darkened to brown and sunken in even more. They are all firm.

The spike is starting to branch, and it seems in alarming portion to the vegetative mass of the plant. The roots were mediocre and don’t appear to have grown much except for one tiny tip at the psb after I used Kelpmax for the first time, two weeks ago.

Can it be blooming itself to death? What is happening to the bulbs? Should I treat them somehow or just continue and hope new growths are prettier? And where’s a reputable place that might have a healthier twinkle in stock?