This was resolved in the October 2018 release of the plugin and Blackbaud Web Services. If your database is hosted by Blackbaud these updates were automatically applied. If your database is installed locally, download and install the latest plugin version and latest version of Blackbaud Web Services.
 

NOTE: The types of data downloaded into Raiser's Edge may depend on what gateway the transaction is processed. For example, Cardholder Name will not download for PayPal transactions downloaded as “XCheckout” transactions. The XCheckout functionality allows donors to connect directly to their third-party payment account (such as, PayPal) to make their donation. Paypal payments are managed through your organization's PayPal account, meaning they get basic information on the donor in LO but the actual donation transaction is managed from PayPal not your Luminate merchant account.