@Sowndar kumaresan Thanks for getting back and sharing the details. in the non-working ( higher) scenario, Could you please try to **list **the environment variables and check if it has been set correctly ?
Run the below command and then try to access the FQDN:
az containerapp revision list \
--name $CONTAINERAPPS_NAME \
--resource-group $RESOURCE_GROUP \
--query "[].{Name:name,DateCreated:createdTime,ProvisionStatus:provisioningState,Traffic:trafficWeight,Active:active,FQDN:fqdn}"
While accessing the FQDN from browser it should list the env variables and its value. See an example below:
Awaiting your reply.