Theme update broke the layout or threw a fatal error
Themes overwrite custom CSS on update unless you use a child theme.
Try this first
- 1Roll back via the backup taken just before the update
- 2Create a child theme and move custom CSS and tweaks into it
- 3Update again, now your changes survive
- 4Document which theme version is live
When to bring us in
No backup and no child theme, a dev needs to restore old theme files via FTP.
See also
- WordPress, plugins and theme have gone 6+ months without updatesOut-of-date WP is the number-one entry for malware. Don't just hit 'update all', back up first.
- WordPress shows a blank screen after a plugin install or updateWSOD (white screen of death) is usually one crashing plugin. You isolate it.
- Site stuck on 'Briefly unavailable for scheduled maintenance'An aborted update left a .maintenance file behind. Deleting it fixes it instantly.
None of the above fits?
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