Versions here range from 7.1 to 8.1 which is within compatible ranges according to filebeat docs.
I just confirmed that we customized our traffic output logs. Some fields had been trimmed from the output.
I've now tested a default output and they are ingesting but with the wrong time zone in kibana, which appears to be a known issue where there is no timezone defined in the log itself:
I'm a little uncertain how to fix this. I tried some of the fixes such as replacing the module/panw/panos/ingest/pipeline.yml in the pull request, as well as upgrading from filebeat 7.7.0 to 7.7.1 and it's still not the correct timezone in Kibana.
Is there something I can provide to help diagnose the issue?