Full path missing when old nodes are added to book

Could this be related to 📌 Missing translation - frontpage link Needs review ? The mentioned issue will be fixed with the next release. Just waiting for response there.

It looks like the same effect, but the cause may be different. I don’t use translations. I’ll look into it a bit more but the only difference I can see is between new articles directly added to the book and old articles not originally part of the book.

It appears that the problem nodes had "und" in the langcode column in node_field_data and node_field_revisions tables. When I changed this to "en" in the database, the nodes were listed in the custom book block with the full link. I presume this has something to do with changes made between Drupal 7 and 8 and that the module doesn't allow for undetermined language specification.

Thanks for investigating more. The changes in the mentioned issue should resolve this problem. I will publish another release during this week which will include these changes.

Published a new release. Please try to replicate the problem with the new release.

Yes, that's fixed it. Thanks.