I suggest that you open a track with our Technical Support department:
https://support.sas.com/en/technical-support/submit-a-support-request.html
They are best able to help you in this case.
Vince DelGobbo
SAS R&D
Learn how use the CAT functions in SAS to join values from multiple variables into a single value.
Find more tutorials on the SAS Users YouTube channel.
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