Sorry, this is a duplicate post of a common issue; https://ww.wp.xz.cn/support/topic/settings-changes-resets-automatically/
Hi,
Excellent plugin but I have exactly the same issue.
All the plugin’s tests pass, conversion settings added, config saved. Rewrite rules are correctly added and WebP images served.
Then sometime later WebP images are no longer served. Visit the plugin’s settings and they have defaulted: ‘Conversion’ settings’ display the default values and ‘Alter HTML’ is disabled.
I will find some time to trawl through the logs later but wondered if anybody found a fix. The only cause that would immediately spring to mind is some other plugin overwriting WebP’s .htaccess mods.
Any help appreciated.
Should be fixed by this:
https://github.com/rosell-dk/webp-express/commit/f6314fc9fc66e8ccf4032eacf1ccced768258be3
I have no idea when that will become public but you can give it a try and change this one line yourself if you like.