I have several ForceGreet packages which are set to interrupt one another, and for the most part the accomplish this task. The problem is, occasionally one of the actors will just "blurt out" what their line is, rather than "engaging" the player in conversation. They don't do this 100% of the time mind you, but often enough that it is a concerning bug. I was wondering if anyone had any ideas of where this inconsistency may come from.

Nvm. Figured it out. As it turns out, if you start the quest housing the other NPC's ForceGreet from the beginning box of a topic's fragments it makes them blurt out because you're already in a conversation. If you put it in the End box it works properly.