@kris.kotlarek Thanks for the fix. Sidekiq is now working along with the discourse official plugins 
.
Most of my 3rd-party plugins with jobs are not working now 
. Most likely caused by the following commit not being applied on their Jobs:: classes. 
Broken 3rd-party plugins
https://github.com/gdpelican/babble/blob/master/app/jobs/regular/babble_post_alert.rb#L2
https://github.com/discourse/discourse-whos-online/blob/master/plugin.rb#L110