Having the same issue,

based on your latest release note:

" Paint.ColorStop now has a new field boundVariables that contains a color field and denotes whether a variable is bound to a gradient color stop."

as I understand, the new field should be a new property in ColorStop.

but it’s just returning an empty array.

Same issue here, I think it is their data model not being correctly migrated for already existing gradient objects.

If you edit the colour stops, the plugin api will send the data through again.

same problem

Is there no official response to this bug?

This bug was fixed!

That’s correct. Thank you all for your patience. We rolled out a bug fix for this yesterday.