Unknown source. Armor class is listed as 31.
Under troubleshooting.htm.ftl the armor class is listed as:
Armor Class 31 = +10[BASE] +1[STAT] +4[NATURAL]
Clearly this math is off. On the Standard.htm.ftl file it is showing a +16 dodge bonus, which must be from Combat expertise even though it's both calculated wrong and not listed in the troubleshooting file.
Expected behavior: Combat expertise bonus at level 14 applies a +4 dodge bonus.
Current behavior: Combat expertise is giving a +16 dodge bonus.
This is likely the result of an improper reading of the combat expertise rules by the author, resulting in a +4 progression at every interval (rather than the correct +1) Combat expertise states:
"You can choose to take a –1 penalty on melee attack rolls and combat maneuver checks to gain a +1 dodge bonus to your Armor Class. When your base attack bonus reaches +4, and every +4 thereafter, the penalty increases by –1 and the dodge bonus increases by +1. You can only choose to use this feat when you declare that you are making an attack or a full-attack action with a melee weapon. The effects of this feat last until your next turn."
It would be easy to misread that as a +4 each time your BAB increases by +4 if someone was skimming the paragraph.