trying to get l3vpn work

I have the following L3VPN topology. VRF CUST-A is configured on the PE routers. I also have mp-bgp neighborship from R1/R2 towards RR (R3).

I am not able to ping from 9.9.9.9 towards 10.10.10.10

https://imgur.com/a/B1bd94Z

1. R9 can see the loopback of R10 (10.10.10.10)
2. ping 10.10.10.10 source 9.9.9.9 doesn't work
3. sh ip route vrf CUST-A : https://pastebin.com/F79pF6KD
4. How does R1 know that it should use the global routing table when it looks up the next hop 2.2.2.2 (loopback of R2) ?