Basically, I was struggling to get jetpack to install or upgrade automatically. It seemed to start becoming an issue after the latest wordpress upgrade. Looking into the issue was showing that the jetpack update would download, but never finishing unpacking.
If anyone else is having the same issue, then putting this in wp-settings.php (on line 25) sorted it:
// Set initial default constants including WP_MEMORY_LIMIT, WP_MAX_MEMORY_LIMIT, WP_DEBUG, WP_CONTENT_DIR and WP_CACHE. if ( !defined('WP_MEMORY_LIMIT') ) //ADD THIS LINE define('WP_MEMORY_LIMIT', '64M'); //ADD THIS LINE TOO... wp_initial_constants( );
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