Huh, didn't see the documentation on loading edges. All good.
FWIW, #64 🐛 hook_node_grants implementations lead to a 'URL Alias' validation error when saving translated nodes. Fixed resolves this issue for me on a multilingual Drupal 10.0 site.
Before applying the patch, users with correct node editing and translation permissions attempting to create a new translation receive the following message...
Either the path '/node/[some-nid]' is invalid or you do not have access to it.
...no message is written to the error log.
Reporting same issue here. On a brand new site with only devel and name contribs installed, when opening 'name list formats' at /admin/config/regional/name/list, page returns "The website encountered an unexpected error. Please try again later." and the following log:
Symfony\Component\Routing\Exception\MissingMandatoryParametersException: Some mandatory parameters are missing ("name_format") to generate a URL for route "entity.name_list_format.devel_load". in Drupal\Core\Routing\UrlGenerator->doGenerate() (line 187 of /app/web/core/lib/Drupal/Core/Routing/UrlGenerator.php).