If you are on the new customer list screen (customer/list_new) and try to sort by certain columns you get a “DataTables warning: table id=DataTables_Table_0 - Ajax error. For more information about this error, please see http://datatables.net/tn/7” error message.
It happens for any of the following:
Website, Parent Customer, Sales Location, External Key, Email, Accounting Phone, Business Type, YTD Sales, Prior Year Sales, MTD Sales, Prior Year MTD Sales, Avg Pay Days, Credit Limit, Credit Hold, Created On, Newest Note.
The problem does not happen if you use the old version.