i don't think jyp did terribly for sunmi's solos when she was still there, and i think ultimately sunmi just wanted more control over her music so that's why she chose to leave.
jyp completely fumbled wonder girls and killed their hype as a group but that's a different discussion.
like, as selfmate brought up, jyp is the company with the worst re-sign rates. nobody stays
Well they better turn those rates around and fast because that company NEEDS Twice to stay. Their other groups may be doing fine in sales, yes, but Nayeon having the best charting JYPE released this year on Melon just by entering the top 30 is a really REALLY bad sign. Twice are carrying JYPE's reputation in Korea on their backs. Their the only group from that company the GP seems to give a damn about anymore. And even with that in mind, their last group release struggled on the charts. If they disband JYPE is out of the big three. It's harsh but it's true.