FIleBeat 7.3.1 and panw module

[mbritton (Michael BRITTON)]

Hello,
we are testing filebeat 7.3.1 and the panw module for palo alto firewall logs.
Logs are send directly to filebeat module but are not ingested in elasticsearch and we have this error in filebeat logs:
Failed to publish events: 500 Internal Server Error: {"error":{"root_cause":[{"type":"remote_transport_exception","reason":"[xxxxxxxxxxxxxxxxx][xxxxxxxxxxxxxxx:9300][indices:data/write/bulk]"}],"type":"null_pointer_exception","reason":null},"status":500}