The halo effect from [Selfless Potion] is very misaligned with the character, when wearing heavy legendary armor on sylvari female. The halo appears ~10cm too behind and very close to the hair.
To reproduce: use sylvari female with some heavy legendary armor pieces and toggle the [Selfless Potion]. (See video, below.)
This bug does not happen with human female and I have not tried other races with heavy armor. It happens at least on sylvari female warrior and revenant.
This bug does not happen with light legendary armor (tested on female sylvari elementalists). I have not verified this on medium armor.
Screenshot: http://imgur.com/a/OqhSC
Video of the glitch: https://youtu.be/aAUUerOBcBc