We are trying to launch a backup with "Upload to Google Drive" correctly configured. "Process each part immediately", "Delete archive after processing" are enabled and "Chunk size" is 100MB.
When we launch backup we can see the backup file growing with a terminal opened at the server, but the backup file grows more than 100MB, it is never processed, so it grows until there is no space in hard disk and the backup process fails. Nothing is uploaded to Google Drive.
Log attached as you have requested.