This article explains a scenario where EVPN VXLAN ESI LAG fails to transmit DHCP packets and suggests a way to verify if the packets reach the end device.
It has been confirmed that by adding the below configuration, everything has started to work as expected.
set routing-instances RI-XX-6XX forwarding-options dhcp-relay forward-snooped-clients non-configured-interfaces set routing-instances RI-XX-6XX forwarding-options dhcp-relay overrides allow-snooped-clients set routing-instances RI-XX-6XX forwarding-options dhcp-relay overrides delete-binding-on-renegotiation