As a complex hybrid, I imagine the blooming period may be a bit varied. This hybrid looks to be registered by Akerne orchids, and orchidroots says it's aboutt 50% kingianum, which I believe can bloom late winter (
Dendrobium Patricia Van Puyenbroeck).
Since these types of dens are usually from Australia, you'd actually be in late winter/spring now according to their seasons
.
Perhaps it's still operating on it's southern hemisphere cycle lol. Did you buy it from Akerne in Belgium by any chance? They are only an hour from me.