One of the biggest examples of weirdness, is the flash backs early in the books when young Harry comes home from school and Justin attempts to enthrall him, he talks about a naked Elaine painted up with feathers, him being tied up, I think even some blood. Then when Lea helps him to remember what supposedly really happened in Ghost Story, it doesn't match the original flashback at all.
That could have happened when he came back to face Justin, he got caught in a binding when that happened.