It's Pippa, she doesn't answer DMs Tenma or Lumi sends her, communication is always going to be her main issue. Lumi has been saying yabcast is ready to go, yabcast just isn't going to happen because it's entirely up to if Pippa is ready to do it, for some reason Lumi just can't get her to answer DMs, Lumi starts brainworming that Pippa actually hates her and goes and asks Tenma about Pippa not answering DMs, oh Tenma and Pippa only talk like once a year. Damn, and they called each other best friends at one point. This is why Pippa is always going to have problems keeping a friendship, you know when she cried during the WoW stream about struggling to keep friends? Yeah, it's very clear why that is.