Plugins updates often fall en masse

With 4.8 plugin updates fail en masse. They all put out ajax messages in place such as the following. I can’t find any pattern for this but it is frequent.

Update Failed: VARIABLEIS VISIBLEIS PUCHASABLEVARIABLEIS VISIBLEIS PUCHASABLE{“success”:true,”data”:{“update”:”plugin”,”slug”:”woocommerce”,”oldVersion”:”Version 3.0.8″,”newVersion”:”Version 3.1.0″,”plugin”:”woocommerce\/woocommerce.php”,”pluginName”:”WooCommerce”,”debug”:[“Enabling Maintenance mode…”,”Downloading update from https:\/\/downloads.www.ads-software.com\/plugin\/woocommerce.3.1.0.zip…”,”Unpacking the update…”,”Installing the latest version…”,”Removing the old version of the plugin…”,”Plugin updated successfully.”,”Disabling Maintenance mode…”]}}