Ancestor Node ID and translations

I have a problem related to Node Hierarchy module, and hoping someone can help me out here.

Modules involved are: Node Hierarchy, Views, i18n, Organic Groups, and Select Translation.

In my current setup I'm using Views (with Ancestor Node ID argument) to display all the ancestor nodes. Basically, I have Groups which are child nodes of a Project, so it works well on English language, but when it comes up to other languages, there's a problem: Groups aren't displayed on other languages than English. The reason why this occurs is because Projects are set up in three different languages while Groups are language neutral, so each Project translation would have different node id. So, Ancestor Node ID is functional only when viewing English language.

Due to this, I've tried to use Select translation (http://drupal.org/project/select_translation) as an relationship provided, but still it doesn't solve it.
The other option which would work for me is to allow each child to have multiple parents, that way all three languages could be selected as a parent. But as far as I see, that's not an available feature. (http://drupal.org/node/284664).

If anyone have a useful resource on this, it would be much appreciated to share it. Thanks!