I would not be hugely concerned about this, if it is early into the flowering stage then I would not expect a smell to be prevalent as of yet.However if it is late into flower and close to harvest some do experience having little odor from the cannabis flowers, the flower/buds even during the drying process the smell can be close to absent.If this does occur as mentioned, expect the smell/fragrance of the flower/bud to develop after/during curing.
Hope this helps.