Can anyone help me how to debug why packetbeat not capturing postgresql packets.

I tried running packetbeat -e -d "pgsql" and it keep on giving below logs
"pgsql.go:472: WARN Postgresql Message too short (length=1). Wait for more.
pgsql.go:630: DBG Message not complete, but sending to the next layer
pgsql.go:723: WARN Response from unknown transaction. Ignoring."

Somewhere before I read that this is because of preparedstatements, but even commands which I ran in psql are not begin captured by packetbeat. Is there any way to debug what is the issue?

Thanks