She was so bad that Fringe decided to go in a completely different direction and recast a male character who became a permanent cast member in place of her. From Reddit:
What happened to Special Agent Amy Jessup?
Posted byu/BethJ2018 2 years ago What happened to Special Agent Amy Jessup? She was fast becoming a great addition to the team and then she disappeared.
Lord_of_Atlantis Cake day · 2y She married a prince.
Actually, she was written out of the show. They thought she would have a bigger role, but they dropped that storyline.
User avatar level 2 hooisit · 1y Good thing.
User avatar level 1 yungsoprano · 2y It's funny because I came to this subreddit a few days ago to find out the same thing. Apparently a user met her and asked what happened and she said the writers decided to go in a different direction.
User avatar level 1 DSFilm96 · 2y Was always disappointed they dropped this storyline, I thought they were really setting up an interesting arc for her.
User avatar level 2 BethJ2018 OP · 2y Me too!!
User avatar level 1 Gbaym · 2y Long story short, Jeff Pinkner and the writers created this character in the midst of the dispute with Kirk Acevedo (ultimately, thank god, they agreed to have him as a guest star in seasons two and three, but by the end of season one the question was whether he will be appearing on the show at al)l, FOX wanted another female character instead of Charlie, but the writers ultimately hated her, viewers didn't like her, so her storyline was quickly dropped. Honestly, watching season two in 2009, I was rather glad we didn't see her as a Charlie replacement, but sad they abruptly ended her storyline.
I will concede the storyline within the show they were setting up for the character was awesome. Sadly Meghan is such a cringeworthy shit actress that nobody could stand her. Read comments after she left Suits too, people were glad that she was gone and didn't like her or Rachel, which she played as herself.