seem like lightbox doesn't handle escaped html entities in comments properly.
if a cover art picture has

Page 1 & 2

as a comment, the lightbox header of that picture shows

Page 1 & 2

i added two pictures which highlight that behavior. and here's a link to that release: https://musicbrainz.org/release/b412bd30-bfa2-4db6-920b-fd86e05f28f6/cover-art