Is weird...
You can try nodes to announce when they are ready or in tree to see if it is an order related thing, and show path too to check everything is ok.
It could be a bug, check on github if there is another issue related to get__node, if not and you can reproduce it on a minimal project (or you can share the problematic parts of your project), create an new issue.
If you can't reproduce or dissappears after trying to isolate the problem, it could be a bug too but maybe not possible to identify with that information.