Comment 3 for bug 1963698

In this specific case (the environment Olivier described), we tested focal-xena and the issue was NOT reproducible. We've decided to go with Xena so field-high can be dropped (I'm not able to remove the subscription by myself here).

Assuming that it might be focal-wallaby specific since we haven't seen this kind of issues in other customers with ussuri, there may be some patches which needs to be backported. e.g. other distribution seems to have backported the following:
https://github.com/ovn-org/ovn/commit/c83294970c62f662015a7979b12250580bee3001
(no idea if it's connected to the issue or not though)