cannot always import existing annotations

[ValWood]

sometimes, I cannot import existing annotations, although I can see them, and select them, they do not appear in the activity unit?

this is happening for me now on http://noctua.geneontology.org/workbench/noctua-visual-pathway-editor/?model_id=gomodel%3A662af8fa00000499 after importing mug56 and trying to select the cytochrome b5 activity