Created attachment 59205 [details] screenshot Local Cover Images option under Enhanced content tab in System Preferences is displaying settings from Coce Cover images cache option instead of its own. The manual states the settings should instead be: - AllowMultipleCovers - LocalCoverImages - OPACLocalCoverImages There is no option listed at all for Coce Cover images cache. This issue has been observed to disappear when the language is switched to en from en-nz for the staff interface. Please see the attached image for a screenshot.
If it's language specific, it might be a translation issue. Sometimes something gets into the po files that should not be translated and can cause strange issues. Have you tried to compare the templates? Updating the templates manually might also be a good step (with koha-translate).
Suspecting an issue with the language installation here, closing WORKSFORME. Please reopen if you still experience the problem.