When scripts are executed, the jobs get Abort and fail. The joblog does not show any PID.
The following error may be seen in agent transmitter/receiver logs
2021XXXX 00001234+0500 tcpip@CA_SCH OS_COMPONENT 12345.12345678_1/WAAE_WF0.1/MAIN State FAILED Cmpc(9) SetEnd Status(Aborted, Signal 9) JobLogId(193XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX)
Release : 12.0
Component : Workload Automation System Agent
If the joblog doesn't show any PID before the job is aborted, then check if any security software is blocking root (or any other user) from executing scripts.
Check software like CyberArk or CA Control Minder have rules that may prevent scripts as root.