Sadly, it's a very common thing. I know it must be hard to recapture the early magic, but I think a lot of these comebacks are just cash grabs unfortunately.
Off the top of my head,
Steelheart, Riverdogs, Giant, Lynch Mob , Tyketto, Hericane Alice, to name a few.
Although, the recent "Hittman" album shows that they can sometimes be a triumph.