Kris Jenner Puts the Brakes on Rob & Chyna?

Insiders claim Kris Jenner is putting the squeeze on Blac Chyna's pockets by refusing to OK shooting for the next season of Rob & Chyna... 

Sources tell Radar Online
"The network wants to do it; Rob and Chyna want to do it but Kris won't let them start yet and she is coming up with every excuse in the book."
“Kris is controlling everything.”
“It’s all politics and it is bizarre. That show got huge ratings. ‘KUWTK’ is tanking in the ratings. It should be a no brainer for Kris, but it isn’t.”
“Kris is being vindictive and exploiting Chyna. She’s pitting the entire family against her."