My browser console is filled with 401 errors, should I be concerned?

When the v3 picker is initialized it tries to pre-authenticate with the various cloud drives that have been selected for use in the picker. If the user has previously authenticated with the selected services, some data will be pre-fetched. If the user has not authenticated with the services previously, a 401 error will be returned for each service. These errors do not prevent the picker from working or cause any problems. They can be safely ignored. In a future release these errors will be suppressed.