Swagger error

I have only one API available so far, but it is failing to work with Swagger. I am getting

“Could not resolve reference because of: Could not …definitions/WideString does not exist in document”,

I also have some “uncaught in promise” with this detail

“while scanning a double-quoted scalar”, context_mark: t, problem: “found unknown escape character /”, problem_mark: t, note: undefined

This is with the latest Swagger - should it work? There is nothing mentioned in the beta changes that seems relevant.

it was already fixed.
try to retest it with the latest beta.

Indeed, working in the 9.4.0.1341 beta