I tried both my work and personal accounts and neither work for me either. You're probably going to need to reach out to Tableau Support about this.
Thank you very much for sharing this!
I did write to Tableau Community about this. I was advised to post a question here.
Following your advice, though, I just submitted a new case. I hope Tableau will manage to answer soon (by providing the workbook and the name of this type of dashboard)! That's all I need now, I think.
Thank you so much!