In selection box, using tab key to select other choice with blue rim

[tutuevelyn]

Example

 

After Export....

and Save, I close the file with cmd W

 

Before, Affinity prompted with Save changes,

and the dialog box has SAVE highlighed in blue, to be selected with Return

and DISCARD had a blue rim, and could be selected with TAB key.

 

No this second option BLUE RIM around alternative selection to be used with TAB has disappeared.

 

Can you bring it back.

 

Thanks.