Your orchid cross has been registered as Bratonia (Miltassia) Stephenses' Love Blooms. Bratonia replaces Miltassia in the great renaming of orchid names.

Sorry, I have no idea why it refuses to flower in your conditions, especially so when you have flowered a Brassidium. I say this because for some people Brassia just grow beautiful leaves and never flower.

That's funny. I have a NOID brassia that has horrible looking leaves because it never has gotten watered often enough, but it never fails to put out one or two spikes a year. The leaves are crinkled and spotted--ugly! The miltassias (or whatever name they are now) are both spiking and looking good, although with the same crinkled leaves. I try to water them twice a week but sometimes forget. Shame on me.

Well, yes my son has one that experiences absolute total neglect and it flowers every year. That is almost no shade, no repotting, no nuthin, spose it flowers because death is just around the corner. Annual temperature range low 40's F to one or two days 100F

A mystery, other growers bring presentable plants to orchid society meetings with lovely flowers and foliage.

I wish the RHS would ban punctuation on orchid names. Having the apostrophe just causes confusion. It is the right place above, not my typo.
Bratonia has replaced Miltassia in this instance , not every time.