I have had great results under LED light. It could be a humidity thing, or sometimes flowers are deformed. I find first flowering plants can misbehave.
I once had a phal put out similar, oddly deformed blooms, which I attributed to over-use of KLN while in spike. I've since abolished use of the product as soon as I see the first hint of a spike. That same phal has rebloomed for me with healthy flowers. Could it be KLN?