USD Character skinning broken?

How does one flag up bug questions here?

This is a blocking issue for me, and granted I do not pay for support, but it would be great to know that someone has glanced at the issue, better yet to tell me if its a bug that needs a fix/workaround

I understand this is a community, which is great for ‘how do I XYZ?’ but whats the process for bug reporting in unreal? just post here or on discord?