TEdit.SetFocus not working as expected under macOS

[Former user]

I have a TEdit control on my form. Once the user enters text and presses return, I would like to refocus on the same Edit control so the user can continue entering data.

In the KeyPress() procedure of Edit1 I do the following:

Memo1.Lines.Add(Edit1.Text); Edit1.SetFocus;

This does not work, in that the Edit control does not gain the focus.

However, if I place two Edit controls on the form and transfer focus back and forth between them the focus works.