Cyms like coolish temperatures while they form their buds. To avoid bud blast the plant has to stay in a cool room until the flowers start to open, and then move it to enjoy the blooms. I think you moved yours too early and the spike did not like the change in growing conditions. I learned that the hard way last year, and this year there is no signs of stikes coming any time soon.
Now you have to wait an entire year to see some blooms
Unless you have other spikes growing!