invokeLater - SwingUtil vs AppMan

I note advice saying use ApplicationManager.getApplication().invokeLater() over SwingUtilities.invokeLater()

Has anyone seen cases where the SU one 'works' but the AppMan one doesn't? I have such a case below.

Is one intended to be a direct replacement?

...invokeLater(() -> {
  wizardContext().getWizard().updateButtons(false, false, false);
  wizardContext().requestWizardButtonsUpdate();
});

Those two lines work from a constructor when SU.invokeLater is used but not the other.