I copy a posting every week for payroll entries in GL-B.  On 9/10, I copied a posting and was editing the entries.  I was going to have to change too many of the account numbers from the previous entry, so I deleted that one.  (I did not post it.)  
 
I then copied another entry and edited it.  I completed this one and posted it in GL-B and GL-O.  
 
When looking at a detailed trial balance of one of the accounts on this entry, I noticed there were entries that were doubled from that posting.  Looking back at the GL-O posting report, it seems that every entry I made was doubled. The deleted transaction #6307 showed up with the correct posting, transaction #6308.
 
We are currently using Version 2015.1 of EVO.  
 
Thank you for your help.