My human has never betrayed Freeport but managed to complete Human timelines for both Freeport (Stewards of Freeport) and Qeynos (A Deeper Plot) On the contrary, my arasai was born in Darklight Wood and got thrown out of Neriak before she could arrive to Freeport as a welcome guest. She's a citizen of Kelethin now, and Arasai mentor in Freeport won't give her the first racial quest. Which of these cases is intended behavior and which is a bug?
There's one for both sides for all neutral races while those of good or evil alignment only have that alignment. Arasai are an evil race-- you'll have to betray back to evil alignment to complete it. There's an achievement and title for doing literally every race and alignment quest on one toon.