In contacts I have set up groups. When I try to send an email to a group it will not include all the names in the address.

Example: Tried to send to a XXX group with 6 contacts in the group, it will only include 3 of the contact in the address.

Have tried this on several other groups with up to 17 contacts and it will only include about 6.

How do I fix this.

I have Windows Essentials 2012 with Windows 10.

Did not have this problem with older windows live mail program.