object-cache.php causes fatal error when using switch_to_blog()

  • switch_to_blog() causes a fatal error “Allowed memory size of XXX bytes exhausted” on class-wpdb.php when object-cache.php by the Performance Lab plugin (Version 3.0.0;?https://make.www.ads-software.com/performance/)?is installed. Does not happen when users are logged into the WordPress backend.
    Tested on classic themes including Twenty Twenty-One. Twenty Twenty-Four seems to not be affected. Tested on WP versions 6.5.2 and 6.5.3. WP version 6.4.x is not affected.

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  • Plugin Support James Osborne

    (@jamesosborne)

    Thanks for reaching out @digberlin. Based on the error you’re reporting I’ve been performing some tests without encountering the same. Due to this we may need to further information in order to determine what may be happening. In order to do so, please share the following:

    1. Your Site Health information. Feel free to remove any site references, we’re mainly looking to view your server and PHP information.
    2. Does this error occur after a certain action, with the error appearing on your wp-admin dashboard, or are you seeing this error when reviewing your logs only? I ask as I can see switch_to_blog used only when uninstalling the plugin.

    Let me know if you have any questions with the above.

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