There is a bug on the ovn 24.09 bump affecting external gateway ECMP routes leading to the over-flushing of conntrack entries when one of the two gateway routes is deleted. In https://github.com/ovn-org/ovn-kubernetes/actions/runs/10485571244/job/29042993472 both conntrack entries are being removed instead of just the one related to the deleted gateway.

The failed test cases can be found here: https://github.com/ovn-org/ovn-kubernetes/actions/runs/10485571244/job/29042993472