I'm finding the Address Book, and features that rely on the Address Book, are crashing my GW client after updating with SP1.
I've confirmed if I uninstall GW and Office 2016, then only install GW 2014 r2 SP1, things work correctly. But, adding Office 2016 C2R reinstates the problem.

GW Client crashes if I: create any new item (mail, appt, task, note, etc), open Address Book, & click "Find Contacts" button.

In Control Panel, the "Mail (32-bit)" applet opens and shows two profiles: Groupwise Address and Outlook Address Book. When selecting the GroupWise Address Book\Properties I get a Windows Messaging error: The action could not be completed. The .DLL file for the information service could not be loaded.

Specific error in Application Event log is
Source: Application Error
Event ID: 1000
Faulting application name: grpwise.exe, version:, time stamp: 0x577545e8
Faulting module name: mso99Lwin32client.dll, version:, time stamp: 0x57cad8b4
Exception code: 0xc0000005
Fault offset: 0x000c8cd2
Faulting process id: 0x1b94
Faulting application start time: 0x01d20ea01a1fe141
Faulting application path: C:\Program Files (x86)\Novell\GroupWise\grpwise.exe
Faulting module path: C:\Program Files (x86)\Common Files\Microsoft Shared\Office16\mso99Lwin32client.dll
Report Id: 451773a6-ec92-4516-9efe-238d47c4798a

Anyone else seeing this type of behavior with SP1 and Office 2016 C2R? Any suggestions?
Thanks in advance