Looks like K.V. Anand's Ko is in trouble again. Earlier, lead actor Simbu opted out of the movie after doing the photo shoot and heroine Tamannaah was replaced by Karthika, daughter of yesteryear beauty Radha. Now the latest we hear is that actor Jiiva, who replaced Simbu recently, was denied a visa by the Chinese government. The team was planning for a shooting schedule in Northern China-Mongolia border. Sources say that the entire team applied for the Chinese visa but the lead actor Jiiva alone was rejected for the second time.