@Darthskippy You probably already know this by now, given that you continued to translate and upload Creepy Cat after this chapter, but MangaDex does not remove translated chapters for licensed manga unless those chapters break one of the site rules (e.g. if someone uploads scans of the official, licensed translation). The only exception to this (and I might be misremembering these exceptions) are certain, specific, high-profile titles, and iirc those are/were in response to actual legal threats levied upon MangaDex.
The reason chapters will sometimes disappear once a manga gets licensed is because scanlation groups will sometimes take down their own translations, either out of respect for the author (and to drive people towards the official translations), or because the scanlators themselves got hit with a cease and desist, threat of lawsuit, etc. and have taken down their work in order to protect themselves.