CDP Backup produces error Invalid Exclusions when saving can not edit any settings or selections

Trying to change selections in a CDP (NonStop backup) causes an error Invalid Exclusions, Selecting Backup options gives the exclusions Tab, removing All exclusions is ignored same error produced upon saving Job.

In the exclusions box
Clearing all entries and Check boxes produces same error upon job save
Resting to defaults produces same error upon job save

Dialog Box Says Invalid Exclusions with following text.

More information about this error and solutions may be available online in the Acronis Knowledge Base.
To access the online resource manually, enter the event code at: http://kb.acronis.com/errorcode/
Event code: 0x006400D0+0x00640908+0x00E40020

Searching KB or using the online link produces no results

Thanks in advance.