Oncidium has splotchy leaves

[Stefus_Prime]

I've had the oncidium since June or so, it was potted in a small black container with spagnum moss, I've repotted it in a mix of spagnum moss and coconut husk/fibers. The roots showed no signs of fungus or rot, I've only dosed it with some seaweed fertalizer once and that's about it. The other leaves are super healthy, and a new bulb/leaves sprouted up so I know it's not the entire plant.

---------- Post added at 10:22 PM ---------- Previous post was at 10:21 PM ----------

Originally Posted by WhiteRabbit

Where on the plant is this happening? Old pbulbs? Bract foliage?

Just the leaf, the bulb itself is fine, what is in the pictured is basically the extent of the issue.

---------- Post added at 10:24 PM ---------- Previous post was at 10:22 PM ----------

Originally Posted by kindrag23

D
Oh and the phal in the back ground is astounding!

Thanks! That thing is crazy, I've never trimmed the stems so it's all over the place, it recently sprouted a keiki so I'm pretty thrilled.