No way to Exit dialogue with my NPCs

[Khet]

Alright, this is probably a simple answer, and something I've overlooked but I've added some custom dialogue to NPCs in my mod... however, EVERY NPC that I added the dialogue to, I can't exit the conversation without closing the game! There's no X box (hate that console btw) to click on to exit, only the topics. I've looked through my the topics and there's no GOODBYE topic like there is for GREETING so I can't figure out what's wrong with it!