The AssertThat Global configuration & Reindex page can be found under the Jira Administration pages - & Manage Appsapps:
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On demand a A reindex may be required of AssertThat to resyncronise resynchronise the Jira issue properties. Certain features use AssertThat Jira issue properties such as Dashboard Gadgets and Traceability charts.
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On clicking Start Now Reindex will initially Gather Reindex stats GATHER STATS before proceeding with the Reindex process . and the Status will update to RUNNING
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