>>115286548>Recognizable creator who had previously achieved great success with iconic works gets to create their own new property years later with complete creative control>Through production troubles, ego and/or lack of critical input ends up creating something infamously badKinda sounds like the Star Wars prequels, which as other people in the thread pointed out, also sounds like Legend of Korra. I imagine if Bryke had some critical voices saying stuff like "you need a consistent villain like the fire nation or the series is going to be a mess" or "you can't make the Avatar literally be the embodiment of a pair of floating parade kites"
That's the cartoon equivalent, the comic equivalent would be something like Frank Miller's later works, Allstar Batman, Holy Terror, even Dark Knight Strikes Back. Or maybe Mark Waid's newer books like New Champions where characters babble about internet discourse and try to be hip and relevant.
But if you're willing to get looser with the definition to just "holy shit the stuff you made before was so good what is this insane garbage? What the hell were you thinking??" then Countdown, Identity Crisis, Amazons Attack, Cry for Justice and Rise of Arsenal, pretty much half of the major DC books put out in the 00s, would fall into that category.