The Ideagen Internal Audit (Aura) main service applies various business rules to data as it is written to the database (e.g. adding child records, concatenating values in rows, maintaining counts).

In certain (and not yet understood) circumstances it is possible for the service to get stressed such that it functions partially for a time, but doesn't apply all business rules. 

The problem may not immediately be noticed by users, but will likely be apparent from strange errors or missing values.  The reliable fingerprint is this error in the file Service\PentanaTngService.log:

This error may follow these two other messages:

Returning to normal operation

Restoring normal operation is simple - just restart the application pool - but it can leave records that aren't quite formed properly (e.g. contain blank calculated values).

Identifying and fixing resulting data issues

This article lists known resulting issues, with queries to identify problem data and guidance on fixing issues:

Ideagen Internal Audit (Aura): Sign Off state cannot be changed – Ideagen Internal Audit (Aura) (ideagen.com)

Ideagen Internal Audit (Aura): Errors appear when changing Sign Off state – Ideagen Internal Audit (Aura) (ideagen.com)

Ideagen Internal Audit (Aura): Message "You cannot set this [record type] to Approved until all the child [record type] are Approved", even though there are no child records – Ideagen Internal Audit (Aura) (ideagen.com)

Ideagen Internal Audit (Aura): Attachments behave as thought reserved, but show no name in the Reservation field – Ideagen Internal Audit (Aura) (ideagen.com)

Ideagen Internal Audit (Aura): Error opening attachment: "Document Is Unavailable" and Filename is blank – Ideagen Internal Audit (Aura) (ideagen.com)

Ideagen Internal Audit (Aura): Message "You cannot set this [record type] to Approved until all the child Points are Approved", though all visible Points are set to Approved – Ideagen Internal Audit (Aura) (ideagen.com)

Ideagen Internal Audit (Aura): Record with Ref and Title has a blank Name – Ideagen Internal Audit (Aura) (ideagen.com)

Ideagen Internal Audit (Aura): Error "Object reference not set to an instance of an object" on Audits screen where a checked out Audit is listed – Ideagen Internal Audit (Aura) (ideagen.com)