Wordpress LScache Plugin: UCSS cron task never starts
Last Updated on: Wed, 15 Apr 2026 00:00:02 Hi, Im using LSC v4.0 and activated combine CSS, cache mobile and generate UCSS. Requests in queue keep growing, but cron (scheduled 60 times an hour) never picks up. REPORT: EGYJIENU Server cron is working fine for image optimization & crawler (for now disabled). After crawler runs, hundreds of pages are awaiting UCSS generation. Renewed Domain Key today. The page I need help with: https://www.mmwb.nl Hi, In addition. Just processed 80 pages by starting the cron task by hand. CSS Optimization Overview on QUIC.cloud mainly shows following results: [UCSS] https://www.mmwb.nl/kosovaarse-politicus-door-eulex-aangeklaagd-voor-corruptie / null / 1s 21-06-2021 12:18 [UCSS] https://www.mmwb.nl/bedrijven/m-r/philips-pensioenfonds / null / 1s 21-06-2021 12:18 Hope you can help Hi, Combined CSS on homepage = 169591 bytes of which 80,8% is unused. Im (not) sure this page was been Optimized ? Hi, On June 21 /wp-content/litespeed/css/ contained about 10 CSS files each app. 160 KB, generated for over 800 credits. Of these files about 80% is unused CSS. Am I missing something? Hi, debug.log shows recurring error when optimizing several pages (UCSS): 06/22/21 20:02:07.632 [85.145.114.121:58828 1 L6s] [Cloud] response ok --- array ( ucss => / null /, msg => UCSS generator error: uncss/node_modules/css: unable to parse undefined: :506:38: Unknown word 501: .wp-paginate.wpp-neon-pink .current 502: opacity: .6 503: 504: 505: .wp-paginate .current background-color: #806d7e 506: -> .wp-paginate a.page color: #806d7e !important 507: / WARNING: Do not edit this file. It is dynamically generated. Any edits you make will be overwritten. / 508: / This file generated using Weaver Xtreme 4.4.7 subtheme: MMWB (based on Antique Ivory)-V-3507 / 509: / Weaver Xtreme styles - Version 3509 / 510: #wrapper max-width:1100px 511: a, .wrapper a color:#4863A0 ?, The unknown word in line 506 being !important Please advise So that was the culprit. A !important CSS syntax error Seems to work smooth now. A folder /wp-content/litespeed/ucss was created and contains CSS files of appr. 30 KB (instead of 160 KB). Will keep an eye on the cron-task Much appreciated functionality! Seems to work like a charm now. Will need new credits next month
LiteCache Rush: Speed comes from using less, not from doing it faster
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