Off-contact issue

I need help bad! im printing a 3 color run on an 8x8 m&r chamelion, only using 5 platens right now. 3/5 of my platens print perfect, zero registration issues at all, off contact is perfect. On the other 2/5, the contact is MUCH closer, there is almost zero off contact. The prints on the last 2 platens are consistently off, and im assuming that's why. Does anyone know a solution? If it's warped platens i dont mind ordering new ones, i just need to know to finish this run. Thank you for any help!

Location: 
United States