IPsec logs: traffic selectors unacceptable

[decibel83]

Hi,
sometimes some IPsec Phases 2 go down and in the IPsec logs I see the following errors:

10[IKE] <con2000|8> traffic selectors 192.168.123.100/32|/0 192.168.123.0/24|/0 === 192.168.174.238/32|/0 192.168.174.0/24|/0 unacceptable

Forcing reconnect on phases 2 do not solve the problem.

I have to stop the IPsec service and start it again to solve the problem.

The strange thing is that I have this very same problem on two different pfSense systems on different IPsec connections.

Could you help me to understand, please?
Thank you very much!

Bye

[decibel83]

Any hints for this?
The problem persists and the VPN is blocking 2-3 times per week, it's very annoying.

And the same problem happen on two different pfSense installations, so I'm thinking about a miss-configuration or bug.

Thank you!