@redsox02
but i thought mangadex has the dibs rule?
It's an unwritten 'rule' that
isn't enforced anywhere on MangaDex.
Generally,
unless the current group on a project is so far behind (several months or even years) or has notorious quality issues, there's no real point to multiple groups on the same project.
However, since very, very, very, very, very few (English) fan translations are officially sanctioned by the original authors (non-English in most cases here), there is no exclusivity agreement that only one group can work on a specific title at a time.