The character suffers -1 circumstance penalty to attack rolls, saves, and skill checks when outside in daylight.
However it applies some worse effect nowadays (on a gray orc) :
Sometimes the Blind icon stays on the character and i got an attack malus of -2 or -3 to AB.
Sometimes i got a "xyz.. is momentarily blinded by the light", then i got no blind effect.
Ohh, even in the fugue i got blinded
Is that a new feature or a bug?