Touch attack spells and AC

[Zorinar]

Although I am not sure if this is a bug or not, I have noticed a high miss rate on some spells that are "Touch" based spells like Polar Ray (over 50% miss rate against players.) It seems odd to me that I have such a noticeable difference between my weapon hit rate and Polar Ray. If anything I should be hitting a lot more with the spell than with a sword as a Wizard.

All touch attack spells should be ignoring Armor,shields and natural armor. To me, something seems off.

...When you are the target of a touch attack, your AC doesn’t include any armor bonus, shield bonus, or natural armor bonus. All other modifiers, such as your size modifier, Dexterity modifier, and deflection bonus (if any) apply normally.

[Raona]

I find no evidence of this in general when testing on the testport. A touch attack does bypass armour and checks only against DEX and size AC. If you can be more specific about the circumstance, I may be able to find a fluke somewhere, but the base calculations are taking place as they should.

[Zorinar]

Thanks for looking!
I will run some tests and if I see a pattern I will post it here.