The version I am running is 7.13.0 and the Kibana journalctl has no entries even after running the reporting script.
Edit: Actually in my /var/log/kibana I have logs related to the script failure. Here they are:
{"type":"response","@timestamp":"2021-09-29T09:23:04-10:00","tags":[],"pid":1574,"method":"get","statusCode":503,"req":{"url":"/api/reporting/jobs/download/ku5wbunh017q8558112pm9lv","method":"get","headers":{"user-agent":"curl/7.29.0","host":"10.100.10.36:5601","accept":"*/*"},"remoteAddress":"10.100.10.36","userAgent":"curl/7.29.0"},"res":{"statusCode":503,"responseTime":821,"contentLength":7},"message":"GET /api/reporting/jobs/download/ku5wbunh017q8558112pm9lv 503 821ms - 7.0B"}
{"type":"log","@timestamp":"2021-09-29T09:24:28-10:00","tags":["info","plugins","reporting","queue-job"],"pid":1574,"message":"Queued csv_searchsource report: ku5wdo6y017q8558111q6cwv"}
{"type":"response","@timestamp":"2021-09-29T09:24:28-10:00","tags":[],"pid":1574,"method":"post","statusCode":200,"req":{"url":"/api/reporting/generate/csv_searchsource?jobParams=%28browserTimezone%3APacific%2FHonolulu%2Ccolumns%3A%21%28message%2Cuser.name%2Chost.name%2C%27%40timestamp%27%29%2CobjectType%3Asearch%2CsearchSource%3A%28fields%3A%21%28%28field%3A%27%2A%27%2Cinclude_unmapped%3Atrue%29%29%2Cfilter%3A%21%28%28meta%3A%28index%3A%27winlogbeat-%2A%27%2Cparams%3A%28%29%29%2Crange%3A%28%27%40timestamp%27%3A%28format%3Astrict_date_optional_time%2Cgte%3Anow-1d%2Clte%3Anow%29%29%29%29%2Cindex%3A%27winlogbeat-%2A%27%2Cparent%3A%28filter%3A%21%28%29%2ChighlightAll%3A%21t%2Cindex%3A%27winlogbeat-%2A%27%2Cquery%3A%28language%3Akuery%2Cquery%3A%27NOT%20%22netmon%22%20AND%20NOT%20%22Administrator%22%20AND%20NOT%20%22jumpsrv%22%20AND%20NOT%20%22jcuser%22%20AND%20NOT%20%2A%24%20AND%20NOT%20%22ldapuser%22%20AND%20NOT%20%22service-sqladmin%22%20AND%20NOT%20%22relay%22%20AND%20NOT%20%22relay2%22%20AND%20NOT%20%22ANONYMOUS%20LOGON%22%20AND%20%28%22An%20account%20was%20logged%20off.%22%20OR%20%22A%20logon%20was%20attempted%20using%20explicit%20credentials.%22%20OR%20%22An%20account%20was%20successfully%20logged%20on.%22%29%27%29%2Cversion%3A%21t%29%2Csort%3A%21%28%28%27%40timestamp%27%3Adesc%29%29%2Cversion%3A%21t%29%2Ctitle%3A%27DCON%20logins%20%2B%20logouts%20%2B%20denials%27%29","method":"post","headers":{"user-agent":"curl/7.29.0","host":"10.100.10.36:5601","accept":"*/*","kbn-version":"7.13.0"},"remoteAddress":"10.100.10.36","userAgent":"curl/7.29.0"},"res":{"statusCode":200,"responseTime":533,"contentLength":1593},"message":"POST /api/reporting/generate/csv_searchsource?jobParams=%28browserTimezone%3APacific%2FHonolulu%2Ccolumns%3A%21%28message%2Cuser.name%2Chost.name%2C%27%40timestamp%27%29%2CobjectType%3Asearch%2CsearchSource%3A%28fields%3A%21%28%28field%3A%27%2A%27%2Cinclude_unmapped%3Atrue%29%29%2Cfilter%3A%21%28%28meta%3A%28index%3A%27winlogbeat-%2A%27%2Cparams%3A%28%29%29%2Crange%3A%28%27%40timestamp%27%3A%28format%3Astrict_date_optional_time%2Cgte%3Anow-1d%2Clte%3Anow%29%29%29%29%2Cindex%3A%27winlogbeat-%2A%27%2Cparent%3A%28filter%3A%21%28%29%2ChighlightAll%3A%21t%2Cindex%3A%27winlogbeat-%2A%27%2Cquery%3A%28language%3Akuery%2Cquery%3A%27NOT%20%22netmon%22%20AND%20NOT%20%22Administrator%22%20AND%20NOT%20%22jumpsrv%22%20AND%20NOT%20%22jcuser%22%20AND%20NOT%20%2A%24%20AND%20NOT%20%22ldapuser%22%20AND%20NOT%20%22service-sqladmin%22%20AND%20NOT%20%22relay%22%20AND%20NOT%20%22relay2%22%20AND%20NOT%20%22ANONYMOUS%20LOGON%22%20AND%20%28%22An%20account%20was%20logged%20off.%22%20OR%20%22A%20logon%20was%20attempted%20using%20explicit%20credentials.%22%20OR%20%22An%20account%20was%20successfully%20logged%20on.%22%29%27%29%2Cversion%3A%21t%29%2Csort%3A%21%28%28%27%40timestamp%27%3Adesc%29%29%2Cversion%3A%21t%29%2Ctitle%3A%27DCON%20logins%20%2B%20logouts%20%2B%20denials%27%29 200 533ms - 1.6KB"}
{"type":"response","@timestamp":"2021-09-29T09:24:29-10:00","tags":[],"pid":1574,"method":"get","statusCode":503,"req":{"url":"/api/reporting/jobs/download/ku5wdo6y017q8558111q6cwv","method":"get","headers":{"user-agent":"curl/7.29.0","host":"10.100.10.36:5601","accept":"*/*"},"remoteAddress":"10.100.10.36","userAgent":"curl/7.29.0"},"res":{"statusCode":503,"responseTime":248,"contentLength":7},"message":"GET /api/reporting/jobs/download/ku5wdo6y017q8558111q6cwv 503 248ms - 7.0B"}
{"type":"log","@timestamp":"2021-09-29T09:25:04-10:00","tags":["warning","plugins","reporting","esqueue","queue-worker"],"pid":1574,"message":"ktui9p04017q855811g2gu5z - Timeout processing job ku5wbunh017q8558112pm9lv"}
{"type":"log","@timestamp":"2021-09-29T09:25:04-10:00","tags":["warning","plugins","reporting","esqueue","queue-worker"],"pid":1574,"message":"ktui9p04017q855811g2gu5z - Timeout on job ku5wbunh017q8558112pm9lv"}
{"type":"log","@timestamp":"2021-09-29T09:25:09-10:00","tags":["info","plugins","reporting","esqueue","queue-worker"],"pid":1574,"message":"ktui9p04017q855811g2gu5z - Job execution completed successfully"}
{"type":"log","@timestamp":"2021-09-29T09:25:10-10:00","tags":["info","plugins","reporting","esqueue","queue-worker"],"pid":1574,"message":"ktui9p04017q855811g2gu5z - Job marked as claimed: /.reporting-2021-09-26/_doc/ku5wbunh017q8558112pm9lv"}
{"type":"log","@timestamp":"2021-09-29T09:25:10-10:00","tags":["info","plugins","reporting","esqueue","queue-worker"],"pid":1574,"message":"ktui9p04017q855811g2gu5z - Starting job"}