These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: The Darksword Trilogy
Sequelitis: The fourth book can be considered to suffer from this trope. It feels very disjointed from the rest of the series, has a completely different style of writing and its full of retcons. To list a few of its flaws:
Joram somehow made another Darksword, after he destroyed the first one in the third book, while the first book established he required the help from a catalyst during the forging process. This book retconned it in that a catalyst only makes a Darksword stronger, but is not required.
Mosiah becoming a member of the Duuk-Tsarith, the law-enforcers and warmages of Thimhallan. In the first book, it was told that the Duuk-Tsarith are chosen from childbirth and trained at a very young age. Mosiah grew up as a farmer, not a warmage.