Haven't seen this and having trouble finding more information.
We wanted to add an interface so I went to list resources and refreshed them. I found that the interface was checked already but not showing up on the table ll Interfaces on the Selected Node.
It has an icon that I listed the name and attached the image of it instead of up, down, shutdown, or others that I have seen before.
Orion/images/StatusIcons/Small-Testing.gif

Any help would be appreciated and if I find an answer I'll be sure to update this. Thank you.