As I can't create a Bug because I don't have the "assign issue permission", I createt a suggestion:
JSWSERVER-16661
Jira Server 7.10.1 Bug:
Component:
Issue Collector
Problem:
When creating an issue collector after pressing "submit" the page don't switch to the next. Without any errors, it just stayed at the current one.
Cause:
Global option "System -> General Configuration => Allow unassigned issues = OFF"
Workaround:
"Allow unassigned issues = ON"
