Insight Reporting with netwflow and IPSec and OVPN

[Seb]

Hello Forum,
i´m using an opnsense with two ovpn and one ipsec tunnel and some local vlan networks.
It´s working fine!

I like the Insight Reporting much but there is no data for ovpn interfaces.

I´s like to monitor the used traffic for single ovpn clients and planned to use netflow for it. but I can not find any data. For lan and vlan it is working fine.

But if I choose openvpn with muy "top usage ports" the is "No Data available"
Also not in Details and Export Tab...

I think this is because netflow is not able to monitor tun interfaces... But, is there a solution? Is it possible to use something different?

regards
Seb