This is a very simple query that just doesn't seem to work in Jira. Any help as to why these searches would not return a complete list would be appreciated.
I've used the following two queries and they work fine by selecting items from a list:
labels != Group_Testing - returns hundreds of issues
fixVersion = 2016.13 - returns 30+ issues
The following queries all return a single issue:
labels != Group_Testing AND fixVersion = 2016.13
fixVersion = 2016.13 AND labels != Group_Testing
fixVersion = "2016.13" AND (labels not in(Group_Testing))
fixVersion = 2016.13 AND labels not in (Group_Testing)
fixVersion = 2016.13 AND labels !~ Group_Testing (Not supported which is kind of annoying)