Congrats! Not sure if what you did was described in Tracker ... but you got it to work and that's the most important thing, right? (no need to answer that)
Admin users of a Moodle face special situations that don't apply to any other roles in a Moodle. And, through the years, once I grasped and remembered that clearing cookies, local browser cache, and trying to go directly to an admin area via URL in browser has been handy. That last part ... going directly ... one has to know the URL. Thus I regularly create an sos.html page ... note that's html ... with relatively addressed links. Example: link to default admin page is /admin/. So that's the link in the sos.html file. Moodle doesn't do relatively addressed normally. Another important relatively addressed link in sos.html is the link to themes ... since themes are inline and a putzzed theme which renders the dreaded 'white screen of death' means admin user cannot change theme. Relatively addressed sos.html page can get there.
About cron ... that you need to address. Have a sandbox server with multiple versions of Moodle. Each cron job cannot run every minute as is recommended, so I have a bash shell script to run them all ... one at a time .... lowest version of Moodle first and marching upwards in versions til the highest reached.
Depending upon what each site needs, a version cron might take longer than the others.
Do know that moodle caches tons of stuff ... and one of the most important task within cron is cleanup or updating cached information.
Anyhoo ... again ... congrats! Now you can move forward!
'SoS', Ken