So I think the Internal Server Error was caused by the mutation proposed being incorrect.
But, in general, I see folks having trouble to see the changes in the development workspace reflect when the are running vtex link because they have more than one theme running in their account…
Sometimes there’s a theme already installed and another one is linked, for instance. If your theme isn’t selected to render the pages you are looking at, changes won’t be reflected as you make them, because our Render Server will be making updates looking at another store theme.