When I remove a point from Falcon Mastery to reclaim a point to reassign to another modifier on the tree, the point disappears. Usually it gives me the point back and I can just reassign it to another modifier on the tree. Twice the point has just disappeared.
Is this intentional? Like respeccing a mastery skill point makes you take an xp loss on that skill meaning its possible to lose points on a skill by respeccing?
I think the minimum depends on your characters level but it should say the minimum if you go into your specific skill tree where the exp bar is for the skill. For my lvl 53 character, the minimum is 7.