The grouping in scheduled trigger JQL and JQL conditions can be confusing when debugging a rule, since the audit log is grouped as well.
This suggestion is not to group the JQLs, or at least show the complete JQL in the audit log to be able to debug the rule correctly. 

Expected results

• The JQL in the scheduled trigger is executed and shown in the audit log
• Then, the JQL condition is executed and shown in the audit log.

Actual results

• The JQL is grouped, and the audit log shows the combined results under the scheduled trigger component.

Workaorund
Add a component between the scheduled trigger and the JQL condition. This way, the two JQLs won't be grouped, and the results will be shown separately in the audit log as expected.