I seem to remember that some of the maneuvers have wonky entries in their Initiation Action field. Searing Blade, for instance, is a boost that, as written, takes 1 standard action to initiate...despite the lower- and higher-level versions of the same effect being swift actions.
Also, the earth serpent style shape of the naityan rakshasa has a stupid flaw in it. The Style Shapes ability specifies that, if the rakshasa cannot maintain the stance associated with the form, it automatically reverts to its natural form. Well, earth serpent puts the rakshasa in the strength of stone stance, which--like many Stone Dragon stances--ends if you move more than 5 feet. Earth serpent also gives the rakshasa the ability to use the charging minotaur strike, which requires you to make a charge attack. Something seems off about this combination.
These are just things off the top of my head. I'll sift through again later. It might also be worth it for such an errata project to make it clear exactly how Adaptive Style works--the whole "also refreshes maneuvers" thing wasn't very intuitive to me when I first looked at it.