Nickelodeon's "Sam & Cat" may be one of the top kids' shows on television, but off the air, it's becoming a nasty soap opera.

Last month, a racy photo of star Jennette McCurdy in lingerie popped up online, fueling rumors that Nickelodeon was canceling the show. Then McCurdy was a very obvious no-show at the recent Kids' Choice Awards.

She addressed her absence March 29 on Twitter, hinting that her unhappiness is tied to reports that co-star Ariana Grande has a much higher salary than she does.

"I wish I could explain everything as thoroughly as I would like to, but unfortunately a simpler explanation is all I can write," she tweeted. "I was put in an uncomfortable, compromising, unfair situation (many of you have guessed what it is) and I had to look out for me. I chose to not go because sticking up for what is right and what is fair is what my mom taught me is ALWAYS the most important thing. I want to thank those of you who have reached out with kind words of support, McCurdians and Arianators alike. No matter who or what you support, I believe in supporting fairness first."

When speculation continued that her absence had to do with the photo leak, McCurdy tweeted: "It has to do with how nickelodeon treated me. That's all."

While Nickelodeon reps haven't addressed the salary dispute, they did shoot down rumors about the show's cancellation. A network rep told Entertainment Weekly that the show is taking a scheduled production hiatus after producing 40 episodes for its first season.

"We are wrapping up what was an unusually long production cycle of 'Sam & Cat,' and everyone is understandably tired," the rep said in a statement. "We are going into our production hiatus next week which will give everyone on the show a much-needed rest."