Another question I'd have is, how long have you been growing them? Many have a once-a-year blooming peried like many orchids. (Others can bloom more often, not all the same) So they might just need a chance to settle in to their new home.
For Bulbo culture in general, check out this talk by Bill Thoms. You can fast-forward through the meeting stuff.
(As with orchids in general, there are exceptions to every general statement... he grows the big, spectacular warm-growing ones. I have several species, from higher elevations, that are very happy mounted - so they dry out during the day though are watered daily - and experience chilly nights.)
If you can't see the link, click on "Quote" to see the html code, and just copy the URL for the YouTube video.