The Kern section talks repeatedly about OgrEbend, which I can only presume is actually referring to Ogrebond. Using the map on p149 of DLCS, this place is turn is called 'Ogerbond', which is either a mistake on that map, and needs to be added to DLCS errata, or the WotL book has multi-errers regarding the damned place.
Failing that, OgrEbend needs to be added to the map.
Also, someone please tell Tracy Hickman that town/village names are created before region names, and so rather than have capital 'Kernen' and region 'Kern', 'Bloten' and 'Blode', 'Throtl' and 'Throt', it would be the other way round. I wouldn't necessarily relate this to TH, except he did it with Ravenloft stuff as well (Mordentshire as capital of Mordent). It's not just Ogres/Hobgoblins. It might be American, though, as regions were created in America the same time as the settlements. I've not looked at Bronze Canticles to see if he does it there as well.
I'd also like to ask why statted NPCs are frequently gifted with random magical items that were never mentioned in the books. For example, Tas has a magical hoopak. What kind of crazy wizard would go around making magical hoopaks? Immediately after Xak Tsaroth, Goldmoon has a magic quarterstaff.
In the Age of Darkness history bit, Pax Tharkas is repeatedly referred to as 'Pax Thrakas'.
All spellcasters have 'all' 0 level spells in their spellbooks. As there are an infinite number of 0 level spells, and each take up a half page, all these spellcasters are assumed to have infinite spellbooks.
In the description of the recovery of the Hammer of Kharas, a reference is made to the 'Helm of Grallen', without there being any description of the item.
Solace references say that vallenwood trees grow nowhere else on Krynn/Ansalon. There's one well known one in the Plains of Dust, the Grandfather Tree.
The Knight of Solamnia variant prestige class doesn't take into account (or seem to take into account) becoming a knight of the sword or rose after 1st level knight of crown or after 4th level of knight of the sword. That said, there is also no (mechanical) reason to remain a knight of the sword after 4th level, unless you particularly want a second smite evil/day or might of honour as opposed to the many, many other things you can gain out of rose knight.
The line 'Thus, in the Age of Despair, the abilities of the Knights of Solamnia are considerably diminished' in the variant prestige class sidebar is also clearly false, unless you are happy to admit that this is an unbalanced prestige class. A non-spellcasting KoS should be able to best a similarly levelled spellcaster character in at least some circumstances.
Fewmaster Toede has also been given far too few levels, and does not have the 'half-god' template added to his character.