a bug in the unit files, create an issue where systemd-networkd does not bring up the interfaces. Reproducible: Sometimes Steps to Reproduce: 1. reboot 2. 3. Actual Results: network does not come up changes in the unit files from https://github.com/systemd/systemd/commit/75efd16fb001ba19d12362198ba5c44cb6f40d04 fix the issue
Created attachment 865544 [details, diff] a patch resolving the problem
Sorry, I had actually reported this upstream myself in https://github.com/systemd/systemd/issues/27718, but forgot to backport the fix.
This was fixed upstream in 253.5.