I was browsing through line webtoon and came across a webtoon titled 'unOrdinary'. Its listed as number 1 in its popular section, so I thought I would check the reviews for it in mangaupdates. But for some reason its not listed here and the webtoon already has over 100 chapters released. I was wondering if this was an oversight or that the webtoon is under a different name here in mangaupdates,

UnOrdinary is an OEL, and MU doesn't include OELs in its database.

wow I had no idea it was OEL. Though I suppose the name John was a giveaway ?

Suxinn is partially correct. At MangaUpdates, we currently do not allow OEL webcomics to be listed. Published OEL (by reputable publishers) such as Dramacon are allowed though

A just ruler amongst tyrants