Miltonia Bud Blast: Need More Info to Diagnose

Your new Miltonia had beautiful flowers, but now buds are brown and not opening. To advise, I need:

1. How long you've had it
2. Potting mix
3. Growing conditions (light, humidity, watering frequency, temperature)
4. Name tag info (cool- or warm-growing Miltonia?)

Miltonias vary—some need cool temps, others warm. Without details, any guess is unreliable.