Tempo is not working with AWS S3

[mateusamorim96]

I'm trying to use GLTM + OpenTelemetry + Prometheus using EKS but I'm getting issues to have Tempo working.
Tempo logs:

level=info ts=2024-09-24T12:51:56.34860946Z caller=main.go:226 msg="initialising OpenTracing tracer"
level=info ts=2024-09-24T12:51:56.351658518Z caller=main.go:119 msg="Starting Tempo" version="(version=2.6.0, branch=HEAD, revision=e85bbc57d)"
level=error ts=2024-09-24T12:51:56.352240713Z caller=main.go:122 msg="error running Tempo" err="failed to init module services: error initialising module: store: failed to create store: unknown backend "

Template used:
{{- if.Values.tempo.enabled }}
apiVersion: v1
kind: ConfigMap
metadata:
name: tempo-config
data:
tempo.yaml: |
server:
http_listen_port: 8080
http_grpc_port: 9095
storage:
trace:
backend: s3
s3:
{{- if eq .Values.environment "prod"}}
bucket: {{ .Values.prod.bucket }}
endpoint: s3.{{ .Values.prod.region }}.amazonaws.com
region: {{ .Values.prod.region }}
{{- else }}
bucket: {{ .Values.np.bucket_no_arn }}
endpoint: s3.{{ .Values.np.region }}.amazonaws.com
region: {{ .Values.np.region }}
{{- end }}
wal:
path: /var/tempo/wal
{{- end }}

I created a role in AWS with s3:* permissions and assigned to the pod via service-account and tested if it was working by deploying a pod with AWS-CLI.

Tempo image used: 2.6.0

I don't know what I'm missing here since I found basically the same structure in the documentation and in another examples.