I just pulled down the latest full docker image. I ran it with the following command.

docker run -p 8080:5488 -e extensions_authentication_admin_username=admin -e extensions_authentication_admin_password=password -e extensions_authentication_cookieSession_secret=yoursecret jsreport/jsreport:2.4.0-full

After creating a basic template, which just said Hello World and setting a schedule to run every minute, I get the following error.

2019-05-22T13:11:12.956Z - error: unable to update schedule stateError: Unauthorized for schedules
at module.exports (/app/node_modules/jsreport-core/lib/util/createError.js:11:13)
at Reporter.createError (/app/node_modules/jsreport-core/lib/reporter.js:265:12)
at check (/app/node_modules/jsreport-authorization/lib/assertPermissions.js:130:20)
at <anonymous>

However when I run the container without authentication, the schedule works just fine.