2d - Some of my grease pencil strokes are grey while others are

I have a Blender file that is producing some strange Grease Pencil lines. On frame 177 my strokes turn gray, and you can really see it since I have a little color behind the head. The strokes aren't

Any grease pencil saviors here? New to blender. There seems to be some weird masking issue when looking at my head from certain angles for what seems like no reason. Only an

grease pencil/ Is there a way to Select an entire object on a layer and fill it in with a singular color? : r/blenderhelp

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