Baldur's Gate : The Sword Coast Chronicles : NWN2 Persistent World

Hi
got a cleric/silverstar/solar channeler level 18. Now at second level of solar channeler i got the feat glaring eyes. it say it should do increasing damage depending on levels but it only do max 8 in damage to normal creatures (not tested on other). gues the previous levels atleast from cleric should add to the raising damage/levels but looks like not.
Maybe already puted in as bug in reports but if not here it is.

Or i misunderstand the works of this feat

Glaring Eyes is Searing Light which against normal enemies does 1d8 / 2 caster levels... So at Solar Channeler 10 you'll do 5d8 vs non-undead/non-construct enemies, 10d8 vs. Undead and 5d6 vs. Construct.

wiki wrote:You direct a beam of white-hot light at a single target. The beam deals divine damage based on the target's racial type:

Undead: 1d8 per caster level, to a maximum of 10d8
Construct: 1d6 for every 2 caster levels, to a maximum of 10d6
Other: 1d8 per 2 caster levels, to a maximum of 10d8