The board quick filters and Status mapping to columns are correct.

The board quick filters can hide issues on the board even when the saved filter returns them in advanced issue search. Quick filters are ad hoc JQL filters that apply only to the board view and a filter left enabled will exclude matching issues from the board while they still appear in search results.

Status mapping to columns can also cause issues to be missing because if an issue's status is not mapped to any column on the board then Jira will not display it on the board. Ensuring all expected statuses are mapped to columns makes those issues visible in the board view.

The board saved filter is not the cause because the question states that the saved filter returns all issues in advanced issue search, so the base filter is not excluding them.

Issue security level would prevent users from seeing issues in both search and board if they lack permission, so it is unlikely here since Maya can see the issues in advanced issue search.

"Hide completed issues older than" setting only affects resolved issues that are older than the chosen time window, so it would not hide open issues or issues with unmapped statuses that match the saved filter.

The board sub filter can restrict what the board shows in some setups but the symptoms described point to either a quick filter being applied in the board view or statuses not being mapped to columns, so the sub filter is not the primary cause here.

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