Firewall dashboard shows nothing

[skrmn]

I have had this docker for the last 2 years, data is coming to Graylog, but I didn't use Grafana much since the first months of installation.
It seems like with the pfSense update (currently I'm on 21.05.02, should fit 2.5.2 community edition) , something changed and Graylog Extractors are not working properly.
Could you please point to the updated content pack, or advise on some fix.

I see that data in the steam coming, but I don't see it to be parsed.

Thank you in advance.