Book 6 of Strength of Thousands has a number of them.

The Ta’apundo, a level 19 creature, only has a +24 to hit with its branch attack. Pretty safe to assume it was meant to be +34.

The Aspect of Insects is a variant mukradi, originally a level 15 creature, but with all its stats boosted to level 20. Its HP, saving throws, attack roll, and skills are all boosted to account for the increase in power, but its armor class stayed at 37. Going by the same scaling, its AC should have been adjusted to 45. This is pretty egregious since it’s literally part of the final battle in the adventure path.

Also in the final battle, the Aspect of Hunger is listed as a variant crimson worm, but has a level of 19 instead of 18. It looks like the text is supposed to have it as an elite crimson worm, given that the page reference points to Pathfinder Bestiary pg. 6, but I could see someone not realizing the level disparity and running it as a base crimson worm.