JS: Authentication Error

[dave-green-uk]

Getting the following error on the front-end, even though the app ID in the plugin settings is 100% the same as the app ID in the Smooch dashboard; no spaces or other text present.

Unhandled promise rejection 
Error
columnNumber: 16338
fileName: "https://cdn.smooch.io/smooch.min.js"
lineNumber: 42
message: "Unauthorized"
response: Response { type: "cors", url: "https://api.smooch.io/v1/init", redirected: false, … }
stack: "o@https://cdn.smooch.io/smooch.min.js:42:16338\n"
__proto__: Object { … }

[dave-green-uk]

@gozman could this be anything to do with caching (CDN/server/other?)