During execution of a generate processor, JESMSGLG shows error message
IEC141I 013-18,IGG0191B,<jobname>,<stepname>,<ddname>,<unit>,<volser>,<dataset>(<member>)
The processor fails with messages
C1X0011S STEP ASM PROGRAM ASMA90 ABENDED, CODE=S013
C1G0129E STEP ASM RC (S013) EXCEEDS THE MAX RC (0004) FOR THE PROCESSOR STEP
IEC141I 013-18 means that a DD statement specifies a dataset name with a member name in the DSN parameter. The dataset can be found but the specified member is not found in the dataset
You need to examine the DD statement for the ddname specified in message IEC141I in the processor step named in message C1G0129E and maybe also the rest of the processor to determine why the member is not there
If the issue is caused by a processor symbol, then it may be enough to adjust the override for that symbol in the definition of the processor group
If the processor needs to be adjusted, you need to exercise caution as the change may affect other processor groups that run the same processor.