I don't know what you are seeing, but someone else reported what might be the same thing yesterday.
For what it's worth, I don't see much use in general for having Live Screen Drawing set to immediate, and even less on a Retina display given all the other problems they seem to have. LSD is a big drain on resources and is rarely really necessary, and at those times when it is you can invoke it from the Delayed setting by using Patient User Mode, click and hold briefly before dragging.