We have encountered multiple cases where after successful running the mainframe analysis customer have found couple of cobol files were not analyzed and respective objects were not created in KB. When verified it was found that the files which didn’t get analyzed are in fact not cobol programs hence, those files were skipped during the analysis.
To know if they are valid cobol program, make sure they have PROGRAM-ID defined in it. PROGRAM-ID is the name that will be given to the object during compilation and it is mandatory for every cobol file, this is used to identify the cobol program.