This character head is all one object but I am having a problem when applying Grease Pencil Line Art Modifier to the head with glasses. The eyebrows and eye lashes are joined geometry cards, with texture based transparency, the edge of the eyebrow and eyelash cards is showing Line Art, I'm trying to make this goes away. However when geometry edges that are supposed to have Line Art pass through transparency, the line art does not show (The glasses frame and edge of eye) I would like this to show line art.
Trying to understand the principle, setting, or technical limitation at work, so that I can do something about it. I've been playing with Occlusion settings, Material Masks and Intersection settings, but I can't find examples online, of what how these settings interact. General settings are as shown