UI Builder "Can't edit. There is an unknown issue."

[brian_]

I wanted to share the problem and solution we found for a UI Builder issue recently discovered. I was able to find other community posts asking similar questions, and some had resolutions or KB articles, but none of those solved our particular issue.

The issue we were facing is UI Builder was unable to edit any workspaces. Loading the page just showed an error "Can't edit. There is an unknown issue." syslog didn't have anything pertaining to this, however the browser's developer tools showed a lot of 404 errors for various resources such as images, fonts, and JSON files. This also led to a lot of strange display behavior, as images and fonts were missing.

[brian_ · Accepted solution]

We have a clone exclusion for sys_attachment and sys_attachment_doc to limit disk space consumption. Manually exporting XML for sys_attachment and sys_attachment_doc for the below listed query from production and importing in dev, (as well as a cache.do, and browser cache clear) fully resolved the issue.

table_nameSTARTSWITHsys_^ORtable_nameSTARTSWITHZZ_YYsys^table_name!=sys_attachment^table_name!=sys_email^table_name!=sys_data_source^table_name!=sys_certificate^table_name!=sys_upgrade_history^table_name!=sys_poll^sys_domain=global