DMVPN disables the EIRGP next-hop-self with "no ip next-hop-self eigrp xxx" in DMVPN phase
2, and to go from Phase 2 to 3 you need use the NHRP protocol, and again enable EIRGP next- hop-self with "ip next-hop-self eigrp 134" under the tunnel interface.
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/sec_conn_dmvpn/configuration/15-mt/sec- conn-dmvpn-15-mt-book/sec-conn-dmvpn-dmvpn.html#GUID-BF561439-BCC0-4AAF-80D9-
1F7876CB7B81