New Relic Elixir Agent Configuration Problem - spans not displayed in tracing module

Hello everyone,

We are trying to implement New Relic in our production environment, which consists of 5 microservices written in Elixir. During the process, we have encountered several issues that we’ve managed to overcome, but at this point, we have reached a standstill due to the lack of documentation for the New Relic agent for Elixir. The issue we’re facing occurs in the tracing module, where, when trying to view the traces of a transaction, the spans are not displayed. As a result, we get in the spans detail a message In process spans (2) but it dont show the spans

We chose automatic agent instrumentation, and below are the configurations we’ve added.

./config/prod.exs

config :new_relic_agent,
  app_name: “microservice-001”,
  license_key: “XXXXXXXXXXXXXXXXXXXXXXX”,
  enabled: true,
  distributed_tracing: true

./mix.exs

{:new_relic_agent, "~> 1.0"},

Has anyone experienced the same issue? Or could someone point us to the correct way to configure the agent for automatic instrumentation?