For two days, I encountered the "Invalid structured dataset metadata value" error while attempting to save a prompt in the Google Cloud Vertex AI lab (see the screenshot below). Each time, I provided feedback with comments, screenshots, and a rating to express my frustration.
Though I’m unsure if they acted on my feedback, after two days, the issue was resolved. The key takeaway: Ensure the region specified for saving matches what is mentioned in the course. This small detail can save you a lot of trouble!