Is it true that Andy of Hunan Satellite TV was questioned about lip-synching?

I think everyone has seen the New Year concert. This year's New Year's concert of Hunan Satellite TV was very successful. However, there are many controversies and doubts about some stars. Andy also attended the New Year's concert of Hunan Satellite TV, and Andy was questioned for lip-synching. Is it true that Andy was questioned about lip-synching? Personally, I think Andy's lip-synching at the New Year's concert is fake. Because Andy has always been a dedicated actress, although she is not a professional singer. But for these important stages, I don't think she will lip-synch blatantly. So I think a dedicated and lovely actress like her should not lip-synch. Andy has good resources in recent years, and her TV series is very popular. There is no doubt about her acting skills. Her TV series is deeply loved by netizens. But at this New Year's concert of Hunan Satellite TV, many netizens said Andy was lip-synching. Because there was no sound in Andy's microphone when Wang Han interviewed her after singing "Possible Night", netizens said Andy was lip-synching. However, some netizens said Andy was really singing because it was very cold. Andy was wearing very little clothes and swinging in the air. Some netizens said that Andy's singing voice trembled at the scene. So they say Andy can't lip-synch. If she lip-synchs, her voice won't tremble. In fact, only the parties know lip-synching and real singing. Aside from this, Andy is a very good actress. She never pretends to be forced in the play. She has always been a lively, cheerful and lovely little girl, bringing us many excellent works. Finally, I hope everyone will pay more attention to her career instead of paying attention to whether she is lip-synching.