I have one plant this exact same hybrid.
How big is your plant?
Mine is like a typical henryanum size.
I find this one (at least mine) very very slow growing.
It was a first time flowering seedling with two blooms in the summer of 2013, and it did have one new fan just starting, but that fan is now mature and making a sheath again.
During this time, it has made three more growths, but not mature enough to flower yet.
I almost threw it away because it was so slow and made me frustrated. hahaha
By the way, are you sure it is fragrant?
None of the plants involved in making this hybrid is scented, I don't think?
One parent is a maudiae type hybrid and then henryanaum.