I don't have a direct answer to your question, but here's some degree of reassurance. z/OS 2.3 became generally available on September 29, 2017. Tivoli NetView 5.4 for z/OS reached its End of Support date on October 31, 2017. Thus it appears this particular release combination was briefly fully IBM supported.
Obviously you ought to upgrade to the latest release of NetView as soon as reasonably practical. If the only reason you're holding off is due to Single Version Charge (SVC) limitation concerns, don't hold off. In 2017 IBM abolished the SVC time limits for everyone per IBM Announcement Letter 217-093. - - - - - - - - - - Timothy Sipples I.T. Architect Executive Digital Asset & Other Industry Solutions IBM Z & LinuxONE - - - - - - - - - - E-Mail: sipp...@sg.ibm.com ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN