In theory, Harry could be suspended from the role because he's not UK resident. But I guess they don't want to remove him and leave Andrew in post.
Charles was reported to have been seeking an amendment to the Regency Act that would mean it was consort (optional) plus the next 4 adults in the succession who were also working royals.
I suppose they could define 'working' by amount received from Sovereign Grant, or they'd need to create some other definition. It does make sense that only those active in 'The Firm' get the executive roles
So, currently, leaving aside Queen Camilla, it's:
William, Harry, Andrew, Beatrice
If existing provision to suspend those not resident in UK were used:
William, Andrew, Beatrice, Eugenie
Parliamentary action required to remove Andrew as well:
William Beatrice, Eugenie, Edward
King Charles' proposal for working royals only:
William, Edward, Anne, Duke of Gloucester