pfSense

I have one failover group, tier 1 is WAN, tier 2 is another Gateway(Router) on the LAN.
As you can see in the logs attached (sort by time first) The trouble more or less starts when "LTE" goes down.
Things are getting reloaded and the last log message that the firewall sends out is "restarting IPsec" and "reloading filter". The box jumps to 100% CPU and never really recovers.
It's unresponsive to anything, no lan(ping), no console, no nothing.

No VPN, be it ipsec or openvpn uses the gateway group, they are all configured to WAN. There also is some mentioning of dyndns updating for LTE but all dyndns entries are deactivated in the webconfig.
I don't know why it reloads everything in the first place but the crash shouldn't happen anyways