Network insight, another minor side affect of https://github.com/opnsense/core/issues/2964 export misses timestamp convert.

src/opnsense/scripts/netflow/lib/aggregates/__init__.py

@@ -32,6 +32,8 @@ import glob
 import syslog
 import datetime
 import sqlite3
+from lib.aggregate import convert_timestamp
+sqlite3.register_converter('timestamp', convert_timestamp)
 
 
 class BaseFlowAggregator(object):