Has anyone experienced the Dawn theme replacing their current one?

Just downloaded the Dawn theme from my current shopify store which is running Debut. I clicked ‘customise’ to start working on Dawn. I opened a new browser tab to check my current header message and the empty Dawn theme had gone live! my debut website was gone. Has anyone else experienced this? Now I hesitate to work on Dawn…

Hello @ProsperYarn ,

Dawn theme is compatible only with Shopify 2.0

Your shopify store have version with 1 or 2 ?