Look in the Robot Schedule job log for error RY58309, "Error in executing screen image" followed by RY58304, "Execute session cannot send workstation to the AS400 for Replay object XXXX." The Robot Replay job log for the virtual terminal session might also show: CPC1125, "Job XXXX was ended by user" followed by CPF5140 "Session stopped by a request from device.".
The probable cause is that the Robot Replay received a *BREAK message during execution. We recommend relearning the Replay object.
Note: Actual commands that can be learned into the Replay object to help prevent break messages from interrupting the job:
CHGMSGQ MSGQ(*WRKSTN) DLVRY(*HOLD)