User is having issues with the Checks screen as under the To be Printed section, it is not remembering the previous check numbers.
The check number when entered manually is stored in the cache memory of the browser. That means Core itself does not save them permanently in any drop-down list. The check numbers are stored in the cache of the browser and when you clear the browser cache, those numbers are gone. For example, you created 6 checks for which you manually entered the check numbers from 1001 to 1006. On entering the 7th check, these check numbers will be listed in the Check Number text box. However, after clearing the browsing data of the system on which you are using Core, all those saved check numbers are deleted as it is not a permanent storage.