Error:
DataTables warning: table id=csh_case-history-table - Ajax error. For more information about this error, please see http://datatables.net/tn/7
The error in the application log is:
'java.lang.NullPointerException: null at uk.co.corelogic.mosaic.application.security.strategy.CaseHistoryStepEventPermissionStrategy.getStepContext(CaseHistoryStepEventPermissionStrategy.java:49) ~[mosaic.jar:?] at uk.co.corelogic.mosaic.application.security.strategy.AbstractStepPermissionStrategy.getPermissions(AbstractStepPermissionStrategy.java:16) ~[mosaic.jar:?]'
This is currently under investigation and appears to happen when one or more workflow steps with attachments are deleted but the related events from Case History are not removed.
This can be confirmed by running the following query, please raise a case to have this checked (hosted customers) or the results reviewed, and advice provided (on premise customers).
select * from mo_case_history_events
where link_type = 'STEP'
and not exists (
select 'x'
from mo_workflow_steps mws
where mws.workflow_step_id = mo_case_history_events.link_id
);