Heads Up :
The post you are writing will appear in a public forum. Please ensure all content is appropriate for public consumption. Review the employee guidelines for the community here.
It should work as you are using L3 links. Between the 9ks if the red link is build using SVI over non VPC vlan then please make sure you use a user configurable mac under the svi. This is to allow the 9k to differentiate between vpc vlan and non vpc vlan SVI.