The Yellowish Bulbophyllum
This is endemic to Malaysia, Java, Philippines and Sumatra.
This looks similar to Bulbophyllum caudatisepalum but it doesn’t have the basal sheath enveloping the pseudobulb leaf base and spike.
I got this from a vendor on Ebay a couple of years ago.
I give this the Baker’s culture stays on the kitchen window facing east weekly weakly fertilizer alternated with seaweed mix.
It is currently being treated for fungi infestation on some of the leaves.