Symptom:
Problem Description:
ASA 9.2(2) 
Anyconnect 3.1.05160

DAP doesn't detect the Sophos AV "lastupdate" values for specific client.

The problematic client (german language) doesn't detect the last update value:

[Tue Sep 02 12:48:11.941 2014][cscan][debug][get_data] endpoint.av["SophosAV"].exists="true"
[Tue Sep 02 12:48:11.941 2014][cscan][debug][get_data] endpoint.av["SophosAV"].description="Sophos Anti-Virus"
[Tue Sep 02 12:48:11.941 2014][cscan][debug][get_data] endpoint.av["SophosAV"].version="10.3.7"
[Tue Sep 02 12:48:11.941 2014][cscan][debug][get_data] endpoint.av["SophosAV"].activescan="ok"
[Tue Sep 02 12:48:11.941 2014][cscan][debug][get_data] endpoint.as["SophosAV"]={}
[Tue Sep 02 12:48:11.941 2014][cscan][debug][get_data] endpoint.as["SophosAV"].exists="true"
[Tue Sep 02 12:48:11.941 2014][cscan][debug][get_data] endpoint.as["SophosAV"].description="Sophos Anti-Virus"
[Tue Sep 02 12:48:11.941 2014][cscan][debug][get_data] endpoint.as["SophosAV"].version="10.3.7"
[Tue Sep 02 12:48:11.941 2014][cscan][debug][get_data] endpoint.as["SophosAV"].activescan="ok"

Working(non-german language) :

[Mon Sep 01 15:53:25.032 2014][cscan][debug][get_data] endpoint.av["SophosAV"].exists="true"
[Mon Sep 01 15:53:25.032 2014][cscan][debug][get_data] endpoint.av["SophosAV"].description="Sophos Anti-Virus"
[Mon Sep 01 15:53:25.032 2014][cscan][debug][get_data] endpoint.av["SophosAV"].version="10.3.7"
[Mon Sep 01 15:53:25.032 2014][cscan][debug][get_data] endpoint.av["SophosAV"].activescan="ok"
[Mon Sep 01 15:53:25.032 2014][cscan][debug][get_data] endpoint.av["SophosAV"].lastupdate="5888"
[Mon Sep 01 15:53:25.032 2014][cscan][debug][get_data] endpoint.av["SophosAV"].timestamp="1409577317"
[Mon Sep 01 15:53:25.032 2014][cscan][debug][get_data] endpoint.as["SophosAV"]={}
[Mon Sep 01 15:53:25.032 2014][cscan][debug][get_data] endpoint.as["SophosAV"].exists="true"
[Mon Sep 01 15:53:25.032 2014][cscan][debug][get_data] endpoint.as["SophosAV"].description="Sophos Anti-Virus"
[Mon Sep 01 15:53:25.032 2014][cscan][debug][get_data] endpoint.as["SophosAV"].version="10.3.7"
[Mon Sep 01 15:53:25.032 2014][cscan][debug][get_data] endpoint.as["SophosAV"].activescan="ok"
[Mon Sep 01 15:53:25.032 2014][cscan][debug][get_data] endpoint.as["SophosAV"].lastupdate="5888"
[Mon Sep 01 15:53:25.032 2014][cscan][debug][get_data] endpoint.as["SophosAV"].timestamp="1409577317"

Conditions:
Windows with German language

Meanwhile; a Dutch client (the same timezone as Germany, but not the same language) works fine.