Same?

I bought some Lemon AK auto seeds and planted three of them. From the start, one of them looked different from the other two. I contacted and sent a picture to the seed supplier and they said it’s just a minor difference in genetics but they are the same. One bloomed a week before the others, it’s shorter, leaves are darker. The one ion the front left is supposed to be the same as the two on the right. Left rear is a photo. Comments?

They likely are the same, just different phenotypes. Some genetics have very consistent phenos and some that are diverse. The colors/smell/structure can be completely different in the same strain.