Since we moved some workflows to v2 we experienced more and more trouble with our library nodes. I already posted a bug report to this some weeks ago. Saving the nodes in the library does not work at all right now. Sometimes the nodes forget that they are saved on the library and furthermore do they often have the wrong version number. I even saw a version 0.0.1 already. I didn't get any update on this yet.
And there is a new big problem. It seems like all our library nodes are gone. I can't see any nodes in my library anymore except one that I created today.