optimize started normally (with running engine and elasticsearch) + user logged in
engine goes offline after some time and user refreshes
backend returns 500 status with error message "Failed to get authorizations from any engine for user demo"
User sees error message notification but stays on the same page. (see attached screenshot)
backend returns 401 and user gets redirected to login page
It might related to an issue in the authorization cookie session refresh when the engine is offline.
Logs of the server exceptions are attached.