Too much oil on the damper side. Need to take the adjustments dials off and remove some oil.
Service video below:
https://m.youtube.com/watch?v=e81ZjaRq3XU
Oil height chart:
https://www.manitoumtb.com/wp-content/uploads/2016/11/Oil-Height-Diagram_new-REV2.pdf
Service video below:
https://m.youtube.com/watch?v=e81ZjaRq3XU
Oil height chart:
https://www.manitoumtb.com/wp-content/uploads/2016/11/Oil-Height-Diagram_new-REV2.pdf