EWWW Image Optimizer was updated to version 4.1.3, from version 4.1.1. Changelog:
4.1.3
- fixed: infinite loop when removing invalid API key
- fixed: img elements with incorrect attachment ID being replaced with wrong image src
- fixed: ExactDN CSS and JS parsing incompatible with Autoptimize
4.1.2
- added: detect WP Fastest Cache WebP rewrite rules
- added: notice if WebP conversion enabled but mod_rewrite or mod_headers is missing
- added: better debugging when background/async mode is blocked
- changed: CSS/JS files are filtered pre-emptively by ExactDN to avoid quirks with emoji scripts
- fixed: warning during wp_cron for undefined constant
- fixed: invalid or expired keys would still attempt optimization
- fixed: WebP files are orphaned when using Media File Renamer
- deprecated: PHP 5.3 will no longer be supported in 4.2
- deprecated: PHP 5.4 support will be removed by July 2018
- deprecated: PHP 5.5 support will be removed by October 2018