FCCS Amount Override not working second time round

Summary:

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I have a situation where I need to enter two amount overrides at two different points in time, the first time round it works fine, consolidates and translates to reporting currency as expected, however the second time round it doesn't work after running a consolidation and translation.

In the first example, I am entering an amount override against FY19, P13:

- Entry is done against account 900000 share capital, and its exchange rate type is set to 'historical amount override

• upon consolidation and translation to GBP, the amounts copy from GBP, to GBP_Reporting, and roll up the consolidation dimension to entity total as expected