Exception error – inconsistent values on impairment of non-financial assets policy.
Error occurs when financial assets policy covers two pages and a tag has been applied to each page.
If you hover over both pages, you can see the tag has been applied twice. To correct, double click on the error within CCH and remove the duplicate tag on the second page.
There is a useful video on CCH on how to fix here https://mylearningportal.wolterskluwer.co.uk/aiovg_videos/cch-ixbrl-review-and-tag/