A TPX user exit that was disabled via Q command in TPXOPER needs to be disabled permanently.
Release : 5.4
Component : CA-TPX for ZOS
If a TPX user exit is disabled via the TPXOPER command Q EXIT, the exit is dynamically disabled for the this session of TPX.
However, if TPX is recycled, the exit will be reactivated.
The only way to disable it permanently is to remove it from the TPX loadlib (..CB0VLOAD) before starting TPX.