A new update is available for Base SAS , version 9.4_M3 :
Using the FILENAME statement, CLIPBOARD Access Method on a UNIX host does not return the contents of the recent clipboard
The FILENAME statement, CLIPBOARD Access Method does not support reading records with a length greater than 256
Note: A comprehensive list of all SAS hot fixes is available from support.sas.com. You can use the SAS Hot Fix Analysis, Download, and Deployment (SASHFADD) tool to manage your SAS hot fixes.