Gabrielle Unionis opening up about the “productive” meeting she had with NBC andAmerica’s Got Talentproduction company following her controversial departure.

The actress, 47,revealed on TwitterWednesday that she sat down with the television broadcasting company and expressed her “hope for real change.”

“We had a lengthy 5-hour, and what I thought to be, productive meeting yesterday. I was able to again, express my unfiltered truth. I led with transparency and my desire and hope for real change,” Union wrote.

A source previously confirmed to PEOPLE that a meeting between Union, NBC andAmerica’s Got Talentproduction company was happening this week

Deadlinefirst reported about the upcoming meeting.

Gregg DeGuire/WireImage

Gabrielle Union

Hough, 31, and Union were also both subject to “excessive notes” on their physical appearance, sources alleged inVariety‘s report, noting that Union was allegedly told that her ever-changing hairstyles were “too black” for the show’s audience, while Hough reportedly received constant criticism on her hair, makeup and wardrobe.

In a statement to the publication at the time, Hough — who is set to star in two upcoming NBC Christmas specials — denied that she had a negative experience on the show and said she was “happy to continue my working relationship with NBC.”

Hough toldPeople Nowthis week that she believes“everybody has a voice and should be heard,”adding, “I believe that the paradigm of the workplace and how you do business and work with people now, it’s shifting, and I think that the people that really want to see change happen are going to authentically and positively do that.”

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Gabrielle Union, Julianne Hough

On Dec. 1, NBC, Fremantle and Syco Entertainmentreleased the following joint statement: “We remain committed to ensuring a respectful workplace for all employees and take very seriously any questions about workplace culture. We are working with Ms. Union through her representatives to hear more about her concerns, following which we will take whatever next steps may be appropriate.”

Union has not issued an official statement directly addressing the allegations, but shebroke her silenceon Nov. 27, thanking her followers for their support.

“So many tears, so much gratitude,” shetweeted. “THANK YOU! Just when you feel lost, adrift, alone… you got me up off the ground. Humbled and thankful, forever.”

source: people.com