Hi Kevin,
IBM announced the z14 architecture in July 2017 [more info], a few months after we retired the Version r17.0 of CA Db2 Tools (End-Of-Support (EOS) in March 2017 [more info]). Therefore I would not expect z14 compatibility.I invite you to upgrade to the newest release of our tools : Version r20.0, for which we provide z14 compatibility:
https://ftpdocs.broadcom.com/WebInterface/phpdocs/0/MSPSaccount/COMPAT/IBM_hardware.HTML
Regards,
Philippe Dubost