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I've had bags (not LV) that smelled funny when new and the smell did fade over time (leather that smelled "fishy").
You could try putting it out in the fresh air if you can do so without risk of it being stolen, or maybe put it in a box with a couple of baking soda sachets (as someone else already said) and leave it for a couple of days.
Herbal/wood makes me wonder if it's perfume from someone trying it on before you got it? Since you have other LVs and know that this smell is not "normal" for the brand.
my friend had the same problem, strong chemical smell that gave her a headache, you could smell it once you picked up the bag, she went back and exchanged it. The new one is so much better normal Lv scent.
is it a recent smell?
I recall my white mc trouville did have a strong waxy crayon smell... I didn't use it enough before I sold it so it didn't go away for me