Issue with emails to multiple groups

Issue with emails to multiple groups

I have several groups on Servicedesk which are included on a new email request by a user.
 
However, everytime when a certain group is included the incudent never gets created for that group.
 
For example
 
I have groups, A, B and C.
 
New request emailed to group A - gets created OK.
 
New request emailed to groups B and C (both included as recipitent on the email) - request gets created twice, one in each group OK.
 
New request emailed to groups A, B and C (all included as recipitent on the email) - request gets created twice, one in group B and group C, but no request gets created for today.
 
Please can this be investigated.

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