CSS Combine Periodically Missing Content

I also see broken pages. Everything is fine when I delete all cache and let it rebuild, a week later the problem is back. It’s like building the original cache is fine, but rebuilding it when needed causes an issue. Could it be related to the cache TTL which is set to a week and serving stale cache?

Did you happen to see anything in PHP error log ?

@qtwrk as it always occurs in production sites, I do not have debugging enabled so no errors available.

I will attempt to produce the error manually in a dev environment by setting a very short ttl, however I am unsure of the exact conditions required to for the issue to present itself so this may not be achievable.

One observation I have made, which may simply be a coincidence and due to the nature of most css files, but the “break” that I have observed has been where comments are on the css file. But this may simply be that most css files begin with a comments block… and the break occurs on a new css file…

may I know if you are on v4.2 or v3.6.4 ? if on 4.2 , did you enable UCSS ?

3.6.4 at the moment on the site it just occurred most recently on. It actually occurred twice this week on two different sites.
What is UCSS?

I will point out that this has occurred many times over the years, it’s just that I only now investigated it deeply enough to determine that the combined file was not being built properly. And I will also point out that at has occurred when the plugin was up to date at the time it occurred.
I’m pointing this it in preparation for you telling me to update to the latest version and see if the issue persists….
If you are unfamiliar with the issue existing, there is no reason the latest release would fix it.. fixes don’t tend to be developed for bugs that are not known.

• This reply was modified 3 years, 3 months ago by miketemby.

I have the same problem with combined css files with the latest version 4.2 and i had to go back to 3.6.4 version.

Hi,

please:

download https://www.litespeedshare.net/2021/08/92db40-debug.zip

this package contains 3 modified files with more debug log enabled, for v4.3 version only

please replace them into /wp-content/plugins/litespeed-cache/src/ to override exsiting ones

now edit wp-config.php

find line

define('WP_DEBUG', false);

add ; in front it to comment it out , then add

define('WP_DEBUG', true);
define('WP_DEBUG_LOG', true);
define('WP_DEBUG_DISPLAY',false);

after it

and then go to wp-admin -> LSCWP -> toolbox -> debug setting

set debug log to admin IP only and add your IP in below box

in “Debug URI Excludes” field ,add

admin
ajax

into it , save and purge all

and then wait for it happens again

once it happens , please send /wp-content/debug.log and PHP error log (typically located /public_html/error_log on cPanel) to support at litespeedtech.com with reference link to this topic

Best regards,

Hi,

there is a patch for combined files 404 error in v4.4-rc4 , please upgrade to it and see how it goes

you can get it in toolbox -> beta test -> click “dev” and upgrade

Best regards,