rbarata, you can believe what you want and Estacion when he says it can grow warm. ES lives in a very hot climate as we know so I'd love to see how he does it. I will however still stick by what I said, this orchid does not experience over 24 degrees C where it grows. It grows one kilometer above sea level where its cool and breezy. That to me is a cool grower. Other people resort to using fridges to grow cool growers in a hot climate.
Now I said that it might be suggested that it is underwatered, more as a funny pun as I was expecting it to be suggested. I didn't actually want to imply that is what I believed. What I should have said is that I believe is that it was most likely being watered enough but it was drying out more than it could handle, probably by being exposed to temperatures above 24 degrees C. Even in the UK it is hard enough to not exceed those temperatures. It's going above 29 degrees for the next 2 weeks here and I know Spain and Portugal have a far hotter climate than the UK but just pointing that out for other growers who might have been growing a plant for 5 years without getting it to flower as Estacion believes it can handle the heat, I shouldn't even bother to suggest otherwise but I still will
I will add as a ps, I have flowered a milleri hybrid. I know not the same... but I definitely keep mine cool. They need a lot of light but can't handle the heat the sun provides unless they are growing a kilometer above sea level