Spells: Shadow Sight - necro spell

[Yami Blind]

This spell is supposed to give Ultravision and See Invisible

At present, when casting, I get Ultravision. However, when I use my circlet of shadow afterwards, I cannot see my character. Either this spell isn't properly giving See Invisible or circlet of shadow has some weird invisibility that isn't being counted by the See Invisible portion of this spell.