I have it too and I think it is on purpose since they line up with the indentations. I agree it is very distracting!
I sent an email about a printing error in regards to ICD 10 code F98.8 page 598 in the Tabular List it has the code with a RED P showing it is for pediatric age range 0-17 but the index it says attention-deficit without hyperactivity (adolescent) (adult). I never heard a word back. Also my co-worker has a book from AMA and it is not printed like that. Also page 83 is out of order for Abrasion.