I guess there was a meeting, and Matt Bloom brought to Shawn Michaels, [he] told him some of the stuff she's been putting on her subscription service," Meltzer said. "He told Shawn what was there, and Shawn's immediate thing was,'We've got to get the title off of her immediately!' [So they] switched around the whole show, got the title off of her.
"They had advertised the match for January 10. I believe they were going to do the title change, that Perez was going to win the title, but it was not going to be then. And of course, right after they got the title from her, then they fired her.
https://www.wrestlinginc.com/1139162/backstage-news-on-mandy-roses-nxt-title-loss-and-wwe-release/