Make A Picrew

Okay what the FUCK is going om with these two scan groups?? It feels as if they are silently fighting, because WHYYY are they uploading right after the other on the same mangas?? Why is myth toons uploading on a certain manga, and then a bit later, kaizen scans proceeds to upload the EXACT same chapters to that EXACT same manga?? Or it's kaizen uploading chapters, and then myth tools uploading the exact same chapters after them?? I'm SO confused?? It's making reading more annoying bc I'll click to switch chapters, and it'll be the same fucking chapter!! Can these two just stop whatever the fuck it is theyre doing..