Title: APCu Object Cache causing Cron/Post Editor Issues Last modified: July 10, 2025 --- # APCu Object Cache causing Cron/Post Editor Issues * Resolved [Nomansland674](https://wordpress.org/support/users/haonas/) * (@haonas) * [11 months ago](https://wordpress.org/support/topic/apcu-object-cache-xausing-cron-post-editor-issues/) * Hello, * I’m experiencing persistent issues when using APCu for Object Cache: * – Scheduled posts fail to publish. * – Post editor behaves erratically (e.g., drafts not saving). * I have confirmed APCu is active from my host (`apc.shm_size=128M`, `apc.ttl=7200`). Also i have disabled Database Cache (no conflicts). * Is this a known issue? – Are there recommended settings for APCu + W3TC? - This topic was modified 11 months ago by [Nomansland674](https://wordpress.org/support/users/haonas/). Viewing 9 replies - 1 through 9 (of 9 total) * Plugin Contributor [Marko Vasiljevic](https://wordpress.org/support/users/vmarko/) * (@vmarko) * [11 months ago](https://wordpress.org/support/topic/apcu-object-cache-xausing-cron-post-editor-issues/#post-18551143) * Hello [@haonas](https://wordpress.org/support/users/haonas/) * Thank you for reaching out and I am happy to help! Do you have any other caching engine that you can switch to that is memory-based like Redis or Memcached?Can you please try switching to Disk temporarily if you do not have any other memory based caching method available so we can quickly check if the issue is related to the APCu? * Thanks! * Thread Starter [Nomansland674](https://wordpress.org/support/users/haonas/) * (@haonas) * [11 months ago](https://wordpress.org/support/topic/apcu-object-cache-xausing-cron-post-editor-issues/#post-18551155) * Thank you for the reply Marko. * no unfortunately redis or memcache are not available im on a shared hosting plan where my only option for objects caching is apcu. * My current apcu settings are: * apc.shm_size: 128M * apc.ttl: 7200 * I had disk as option recently and it was working without any issues but as you can figure i had to switch to avoid the large files. * Is there any solution or my only option is to disable object cache? * Regards - This reply was modified 11 months ago by [Nomansland674](https://wordpress.org/support/users/haonas/). - This reply was modified 11 months ago by [Nomansland674](https://wordpress.org/support/users/haonas/). * Plugin Contributor [Marko Vasiljevic](https://wordpress.org/support/users/vmarko/) * (@vmarko) * [10 months, 4 weeks ago](https://wordpress.org/support/topic/apcu-object-cache-xausing-cron-post-editor-issues/#post-18554330) * Hello [@haonas](https://wordpress.org/support/users/haonas/) * Thank you for your feedback. Can you please share the Performance>Object Cache settings screenshot? * Thanks! * Thread Starter [Nomansland674](https://wordpress.org/support/users/haonas/) * (@haonas) * [10 months, 4 weeks ago](https://wordpress.org/support/topic/apcu-object-cache-xausing-cron-post-editor-issues/#post-18554645) * Here you go [https://i.imgur.com/pgHv3YS.png](https://i.imgur.com/pgHv3YS.png) [https://i.imgur.com/Z4Opour.png](https://i.imgur.com/Z4Opour.png) * Plugin Contributor [Marko Vasiljevic](https://wordpress.org/support/users/vmarko/) * (@vmarko) * [10 months, 4 weeks ago](https://wordpress.org/support/topic/apcu-object-cache-xausing-cron-post-editor-issues/#post-18556579) * Hello [@haonas](https://wordpress.org/support/users/haonas/) * Thank you for your feedback. Can you pelase try enabling “Store transients” save all settings and purge the cache and let me know if the problem persists * Thanks! * Thread Starter [Nomansland674](https://wordpress.org/support/users/haonas/) * (@haonas) * [10 months, 3 weeks ago](https://wordpress.org/support/topic/apcu-object-cache-xausing-cron-post-editor-issues/#post-18557943) * Hello, * i applied your suggestion and the issue remains. * While composing a new post i was asked to login more than 5 times and i couldn’t upload image. * After turning the object cache off everything worked as expected. * Plugin Contributor [Marko Vasiljevic](https://wordpress.org/support/users/vmarko/) * (@vmarko) * [10 months, 3 weeks ago](https://wordpress.org/support/topic/apcu-object-cache-xausing-cron-post-editor-issues/#post-18560259) * Hello [@haonas](https://wordpress.org/support/users/haonas/) * Thank you for your feedback. Are you using any other uptimization plugin or any other DB optimziation solution?Any chance you could share the website URL? * Thanks! * Thread Starter [Nomansland674](https://wordpress.org/support/users/haonas/) * (@haonas) * [10 months, 3 weeks ago](https://wordpress.org/support/topic/apcu-object-cache-xausing-cron-post-editor-issues/#post-18561765) * I don’t use any other optimization plugin, nor for the database. I have exactly the same issue on two different websites. Unfortunately, I cannot share the URLs publicly. * Plugin Contributor [Marko Vasiljevic](https://wordpress.org/support/users/vmarko/) * (@vmarko) * [10 months, 1 week ago](https://wordpress.org/support/topic/apcu-object-cache-xausing-cron-post-editor-issues/#post-18581967) * Hello [@haonas](https://wordpress.org/support/users/haonas/) Thank you for your patience. * Please reach out to us direcvly via the W3TC plugin in Performance>Support, and prevoide the information there. * Thanks! Viewing 9 replies - 1 through 9 (of 9 total) The topic ‘APCu Object Cache causing Cron/Post Editor Issues’ is closed to new replies. * ![](https://ps.w.org/w3-total-cache/assets/icon-256x256.png?rev=1041806) * [W3 Total Cache](https://wordpress.org/plugins/w3-total-cache/) * [Frequently Asked Questions](https://wordpress.org/plugins/w3-total-cache/#faq) * [Support Threads](https://wordpress.org/support/plugin/w3-total-cache/) * [Active Topics](https://wordpress.org/support/plugin/w3-total-cache/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/w3-total-cache/unresolved/) * [Reviews](https://wordpress.org/support/plugin/w3-total-cache/reviews/) * 9 replies * 2 participants * Last reply from: [Marko Vasiljevic](https://wordpress.org/support/users/vmarko/) * Last activity: [10 months, 1 week ago](https://wordpress.org/support/topic/apcu-object-cache-xausing-cron-post-editor-issues/#post-18581967) * Status: resolved