Argo workflows. Unknown cert authority,. Crashloopback.

[asaorgad]

Im trying to make argo workflows to use the argocd dex server in order to add authentication to the UI, ive already configured authentication to argocd with microsoft, im using cert manager with letsencrypt ,
Argocd works well with certs , auth , rbac, but argo-server(argo-workflow) is in crashloopback state, i saw a log that says that the "certificate 502 is signed by an unknown authority", im not sure where to start,
Diagnostics:

1. For some reason argo-server isnt signed with the letsencrypt cert,
2. The state of the argo-server pod is crashloopback ,
3. Maybe the ingress rule is misconfigured .
   What is the right way to do it , my target is to make sure argo-workflows UI , will be secured, and as i saw in the docs i can use the dex server of argocd to achieve it, so i thought this is the best way.