I've noticed when using the Torpor skill consecutively and quickly after the self-root expires, my avatar will go through the casting animation but then does nothing. The Torpor spell does not root me, and no additional stats are being applied to the existing Torpor strength buff icon near my health bar. Not sure if the crowd control resist is fighting against the skill? Repro: get your torpor skill to 40 or 80 or so. This can be done from a locked slot or with unlocked glyphs. Cast Torpor, and right as the root is about to expire, cast Torpor again. Sometimes you will be rooted, other times you will not be. So you're not getting the buff because the root isn't occurring but you're also wasting a glyph.