Firewall Floating Rule with Groups not working from time to time

[RamShadow]

Hey,

I have a OPNSense 24.1.9_4 running with some GRE Tunnels.

The GRE Tunnels need all the same Firewall ruleset.
So I have done Firewall Rules in Floating with a Group that have all GRE interfaces as members.

Now, I see from time to time that the rules are not working and I see in the live view that the packets are dropped by the default deny rule.

If I change the rule (add some (2 of the 8 that I have) of the GRE interfaces to the interfaces in the Rule, save and apply the change, remove the Interfaces again to get back to the original rule) the rule is working fine.

Some days later some of the other rules that have the same settings are not working...

Can anyone give me a hint what I'm doing wrong or what I have to do in the scenario.

Thanks thousend times

Lex