Admin Columns Pro 6.4.18

Fixed: Fixed an issue where the plugin would show a PHP timeout on multisite making it inaccessible.
Fixed: Fixed an issue where an error occurred when using the Custom Field column with the inline editing setting set to 'false'.
Improved: API refactored, resulting in fewer calls to our server for license related stuff
Improved: Add-on installs are now done on Ajax
Improved: Changelog display now uses the same markup as WordPress
Fixed: Only one single call is necessary to check plugin updates. This could decrease the loading times on the plugin overview page
Updated: Admin Column Core changes ( 3.4.4 )
Fixed: Transient class fixed. Unchanged data did not update the timestamp resulting in invalidating the transient constantly

Fixed Error on the MS Site overview page
Fixed Rebuilt Javascript to prevent Date Time picker issues for editing

Added It is now possible to recheck the status of your license on the settings page
Improved Bulk Edit is now always enabled (even when Inline Edit setting is disabled). The only way to disable it, is with the `acp/editing/active` hook
Improved Column setting will show if "Export" is disabled or enabled
Improved Limit Ajax Calls for Select2 drop downs by adding a short delay