Since the latest update, this action only opens the first sites WP Admin, and not all the selected ones.
I do monthly exports using Tag to identify where the resulting files need to be sent. While I can open each individually, it’s frustrating that this appears not to be working.
Thank you for pointing me in the right direction, ie Chrome settings. All other extensions (AntiMalware, Ghostery) were already set to not interact with the Dashboard URL.