- 
    Type:Bug 
- 
    Resolution: Fixed
- 
    Priority:Major - P3 
- 
    Affects Version/s: None
- 
    Component/s: C library
- 
    None
- 
        None
- 
        None
- 
        None
- 
        None
- 
        None
- 
        None
- 
        None
As discovered in CSHARP-3360, 503 errors from GCP are parsing a JSON reply, but not finding an error message, resulting in an empty string for the message (and 0 code):
Error in KMS response '', code: '0'. HTTP status=503
- is related to
- 
                    PYTHON-3384 CSFLE test failure on Windows: Error in KMS response. HTTP status=400 -         
- Closed
 
-         
- related to
- 
                    CSHARP-3360 Sporadic tests failures: Error in KMS response -         
- Closed
 
-