Calculated Date Fields aren't being exported

The calculated fields are a JIRA type field - it calculates the date from a different field, that field is a Transition Date field and cannot be formatted, so I had to create a calculated field which then formats this transition date.

When I export it like this:

${Calculated Date Field}

it exports the whole date value including time and so I assumed it still works in the new version, BUT when I try to format it like so:

${dateformat(dd/MM/yyyy):Calculated Date Field}

it does not work/ does not get exported / is a blank in the exported report

and if I try this - the new way

${dateformat("dd/MM/yyyy"):Calculated Date Field}

it does not work/ does not get exported / is a blank in the exported report