Preview theme changes to live theme on refresh

Shopify Plus
1

While working on a preview theme all day without issue, suddenly every time I refresh my browser I am returned to the production theme view.

Additionally, when I try to Preview any theme in the store, the title of the current theme shows the production theme name.

  • I have cleared cookies and cache

  • Same thing happening on both Chrome and Edge

2

Update: This was going on for about ~30 minutes straight for me. Then all of a sudden it’s back to normal and the preview themes are loading correctly.

Anyone have an explanation for this?

Edit - Update 2: The issue returned ~30 mins later. I’ve given up working on Shopify client’s projects for the rest of the day.