Welcome John. Ebony is an oily wood. There are a few black woods that aren't ebony. "Ebony" in the pen turning world of IAP is (or at least used to be) the oily black woods of different varieties.
It can be mildly difficult to those new to the pen turning wood. The CA will harden of course and then lift up in sections/spots/ends away from the wood and give a cloudy look to it. And then there are the few that have no problem with it.
Wiping the blank with acetone a few minutes before applying CA will help. Some use denatured alcohol, and that works for a number of people, but it also leads to spots with others in certain woods for some because of the water in the alcohol, which is not 100% alcohol.
The reason I keep saying "for some" - the nature of the wood, its oil content or water content, the humidity in relation to temperature, the temperature, and ones shop (heated/unheated, open to nature, AC in the summer) are all variables that are different in different locations and they (each one) affect the outcome.
Another problem prone to lifting is CA'ing the blank with the bushing ON. When separating a bushing from a blank, the snap in breaking the bushing off, and with less adhesion due to the oil in the blank, the CA can lift off the bushing. A good remedy is TBC - Turning between centers without the bushings only during the finishing stage. TBC methods vary but accomplish the same ends.
Welcome to woodturning, penturning, IAP, and the never have enough wood/"acrylic"/penkits syndrome......hahahaha...