Artificer Knowledge

[Fecerak]

UMD bonus to scrolls doesn't appear to work. I do not know if this also is the case for the rest of the UMD bonuses gained from it. The +caster levels seems to be working just fine though.

[Arctigis]

UMD bonus to scrolls doesn't appear to work. I do not know if this also is the case for the rest of the UMD bonuses gained from it. The +caster levels seems to be working just fine though.

Clarify please. You mean the +2 bonus? (or you expect the +2 bonus to accumulate for every time the feat
is taken?)

I found the +CL on the potions knowledge feat to be non-functional e.g. haste pots still have a 30s durations (whereas
I now get 14 minutes of GH out of my Gird...)