Getting an odd refresh token when authenticating via App Remote's SPTSession

[PassAuxly]

When I authenticate with iOS App Remote (using SPTSession), the refresh token string I get back from 

sessionManager(manager: SPTSessionManager, didInitiate session: SPTSession) is very odd; it contains lots of slashes (/s and \s) and always ends with ==\n. This does not seem like a correct refresh token, and fails to refresh when hitting my server's refresh logic. How can I fix this?

[4ek-_v682hnvb]

+1