Empty CallLog/Callitem.CachedName in Android 6.0.1

Hi,
When I use the "Phone library"(V2.28) / Callog type the "Callitem.CachedName" allways empty in Andoid 6.0.1. No error message.
Older versions (Android 4.0-5.1) works well. (B4A V6.0/Target SDK 15)
Can anyone help ?
Rgds,

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