Bjoern

Please try v2.4. This version might fix your problem.

Image handling of WPPP in WordPress 5.5 works in my test environment. I would need further details about WPPPs configuration to help you.

WPPP doesn’t create any additional image sizes. Its image handling just delays the creation of intermediate image sizes from upload to first access of each image size. But it only creates those sizes, which are already defined by either WordPress, your theme or any plugins.
gtmetrix only tests the served pages. If your images are resized via HTML WPPP can’t do anything about this. This would require theme adjustements.

You are correct, the issue is the not writable locale. Though in your case this wouldn’t be an issue, as the locale is the correct value. I will change the testing so locale has only to be writable, if it differs from the WordPress locale.
For now try to change the test function so it just return true as everything else looks ok.

Version 2.3.3 should fix this issue.

Integrated into 2.3.2

The fix is integrated into 2.3.2

Just released 2.3.2 which should fix the issue.

Did you ever manage to find a cause for your problem? I haven’t tested with Local anymore since then.

Thanks for pointing it out. I’ll integrate the fix in the next release.

Thanks for pointing it out. I’ll integrate the fix in the next release.

Sorry for the very late reply I’ll have a look into it as soon as I can.

Thanks for the hint. I currently have no Github, but I’ll add a fix to the next release.

No, that isn’t supported.

I just downloaded local for windows version “5.2.5+2498” (seems to be a nice development environment btw) and made a quick test using a fresh WordPress. I get no errors. What OS are you using? And which PHP 7.2 version exactly (in my test local installed PHP 7.3.5)?