TPX SAF TPXOPER hangs using SYSID=xxx

Document ID : KB000119930
Last Modified Date : 18/01/2019
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Issue:
In TPXOPER, if I enter a command like D U,SYSID=xxx for the other TPX region, my TPXOPER session hangs. This is happening for a privileged TSS ID using MFA RSA PIN+TOKEN (about 14 characters long) If I use a non-privileged TSS ID using just an 8 character password, TPXOPER does not hang up. 
Environment:
TPX V5.4
Generic Resource
MFA RSA PIN+TOKEN 
Cause:
When TPX was enhanced to add TPXOPER command routing to other systems the SAF and ACF2 security modules were not enhanced to bypass password verification on the target system.
Resolution:
Download and apply PTF SO06261.