3265939 - Error "Service Unavailable" when using Data flow in connection Google Cloud Storage

Error when creating Data Flow, or expanding folders for Connection Google Cloud Storage

HTTP Status: 500 Internal Server Error
Error Code: getChildrenFailed
Technical Message: Failed to fetch the data. Error in getDisConnectionChildren. Failed to get container children for /.
Cause 1: Service Unavailable Code:99999;
Cause 2: Could not browse resource "Resource_Name" on HDFS connection. Code:80015;

SAP Datasphere

Creating Data Flow, or expanding connection's folders

Incomplete access in Google Cloud Storage

Check that you have all allowed permission for the Project name defined in Google Cloud Storage connection.
As well having access for its root and subfolders path.

SAP Help pages:

1. Connection Google Big Query
   1. Prepare Connectivity to Google Big Query
2. Connection Google Cloud Storage

Google Big Query, expanding, folder , KBA , DS-DI-DF , Data Flows , DS-DI , Data Integration/Data Builder , DS-DI-CON , Connections , Problem