The new version of the intermediary script 'isisToolExecutor.py' failed to correctly handle cases where no args for the intermediary script were given. This is because it incorrectly identified the isis tool name as improperly formatted arg. The script now checks for the existence of the separating keyword before trying to parse the command line arguments. With this new version I was able to successfully run spiceinit->ctxcal->ctxevenodd where ctxcal and ctxevenodd had no intermediary script args.