Sequels made by the same directors that just feel off

[BladeRunner2007]

Every once in a while a classic movie gets a sequel many years later. Not as a cash grab, but because fans demand it. Or so the filmmakers say. But somehow many of them just feel so... off. I can't exactly put my finger on it, but somehow they seem so different and disjointed, even though they were made by the same filmmakers. Often the tone is even pretty different. Here are some examples:

The Texas Chainsaw Massacre 2 - What happened with Tobe Hooper? How did he go from the terrifying and ultra shocking and disturbing original to this overaly dark comedic, yet totally unfunny parody?!

The Boondock Saints II: All Saints Day - Plays like a parody, yet the second half is actually good and serious. Tonally all over the place.

Sin City: A Dame to Kill For - Feels like a bad attempt at copying the original movie but without skill.

Escape from L.A. - Pure parody, if not then it's an utterly disappointing sequel/remake. Very bad if they took it seriously.