Wrong counters because of windows l10n

[aseques]

I have my windows installs in spanish, because of some issues with zenoss, the user I am using to monitor the servers has english as it's language. It mostly works but there are issues with the counters that have special characters.
This is what I get when retrieving the counters for the network interfaces:

2016-06-27 09:02:25,888 DEBUG zen.zenpython: Queued event (total of 2) {'rcvtime': 1467010945.888869, 'device_guid': '3a55b245-25b5-471c-86d9-ed09a83821c2', 'agent': 'zenpython', 'missing_counters': u'\network interface(conexi\xc3\xb3n de red intel[r] pro_1000 mt)\packets received errors, \network interface(conexi\xc3\xb3n de red intel[r] pro_1000 mt)\packets outbound errors, \network interface(conexi\xc3\xb3n de red intel[r] pro_1000 mt)\packets sent/sec, \network interface(conexi\xc3\xb3n de red intel[r] pro_1000 mt)\bytes sent/sec, \network interface(conexi\xc3\xb3n de red intel[r] pro_1000 mt)\packets received/sec, \network interface(conexi\xc3\xb3n de red intel[r] pro_1000 mt)\bytes received/sec', 'manager': 'zenoss.bassols-energia.es', 'device': 'docuware6', 'eventClass': '/Status/Winrm', 'monitor': 'localhost', 'severity': 2, 'summary': '6 counters missing in collection - see details', 'eventKey': 'Windows Perfmon Missing Counters'}

Basically, it seem that either zenpython?, isn't able to process interfaces with special chars in the name (conexi\xc3\xb3n is conexión) or that the modeling saved the interface names with wrong characters.

This is what I see in the interfaces section within zenoss.