There is a known ongoing bug preventing players from aquiring the "Electric Jester" achievement. I just wanted to reassure all achievement hunters that this is being worked on and a fix will be coming soon. The achievement will be obtainable in both new save files and save files where it's requirements were already met.
Thank you for your patience on this issue.
Known Bug with "Electric Jester" Achievement
Source: Steam Community (opens in a new tab)