I'm assuming that your plant of Onc. Meredith Katherine has started to bloom normally. However, if not...
You may want to consider boosting your watering while it's in bud. For such a fleshy plant, these really like the water, especially when they're in bud.
As a side note, it's one of my hybrids from many years ago - named for my daughter. Great to see that it's still around!
-dm