Do you mean the drop of water hanging at the edge of leaves? It happens to mine sometime especially after water. I don't know why but it seems no harm. Maybe the other pro can explain the reason.

Is it possibly a little sticky? Or is it just as fluid as a drop of water? Keep track of it carefully until you figure it out. Rosie

Thank you both. It seemed like it was not water drops because it wasn't evaporating. But I think you are right, Elsa, and it is related to watering. I purposely let them stay 50% longer than normal in water when I watered this past weekend since I read someone else's post mention that they had figured out their buds were drying up before blooming because they had been keeping the plants too dry. I only water once a week and the surface of the soil was not always moist when I dumped the water from the reservoir so I figured I was letting them get too dry each week. I will try to balance it better so they do not feel the need to expel excess water from the leaves. I also noticed the oldest leaf on this plant had turned to mush on the tip so I took it off, and I think it was definitely over-watered for that to happen so quickly.