Cattleya Lueddemanniana

[Pep]

Good morning every one,
I have attached a couple of pictures of one Cattleya Lueddemanniana that is flowering now, I hope you like it. This is the first time that has three flowers in the same spike. There are two more spikes on the way, one is already opening and buds are showing but the other is not so clear. This is a problem that i have with some of my Cattleyas, they grow new buds that end with spikes, but after several weeks or even months they don`t grow buds inside. Some times they remain green for a year, but no flowers at all.
I have read that this might happen if the plants don´t ge enough sun, but i am not sure about it. Why some of the spikes bloom and others, in the same plant don´t?
The aroma of this particular plant is great, not too strong but very pleasant.
The mother plant has been with me since 2009.

[Pep]

I have rotated the picture, i hope now is easier to look, no neck torsion

[estación seca]

That has a great lip!

Buds die from several different causes: Underwatering, hot and dry conditions, cold air drafts, insufficient light as you said, exposure to ethylene gas from ripening fruit or natural gas for heating, and attack by thrips insects.

[Pep]

Thank you for your help. Some of the possible causes you mention, i already know, bud will abort, but in my case, most of the time buds don´t start to grow, it is a blind pseudobulb.
And then i think, why one spike opens and the next doesn`t? Might it be because the pseudobulb is not big enough?

[estación seca]

Blind pseudobulb or blind sheath with a plant big enough to flower is usually caused by uneven watering while the growth is developing, or insufficient light.

[Pep]

Thank you, i will add this new knowledge to my cultural procedures.