See https://community.metabrainz.org/t/why-is-this-one-item-out-of-order/725066/ for more details. Something is wrong with the series ordering that's causing one of the numbered items to sort among the un-numbered items (trying to make a link but something's not working there either, so here: https://beta.musicbrainz.org/series/0b571749-a0be-437b-8407-c41208d539f7). The issue seems to be that currently there are two #46s, but is that cause or effect? Have tried changing the numbers in various places, and the problem just shifts to different items. Have also tried setting it to manual ordering and adjusting everything to be correct, but that didn't help. (Didn't realize at the time that it was a votable edit, although the change in order wasn't reflected with that.)