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Yes, I had this issue as well, she grew up big and healthy anyway. The first couple leaves often come out weird. In my case, I believe it was because I added nutes to my DWC too soon. I've since learned to wait until the cotyledons begin yellowing before I add nutes.
Early growths can look a bit weird as the plant is still super sensitive to any nutes/change in conditions, give it some time and see if it grows normal, if not, it could just be genetics
Looks like a simple mutation. It happens sometimes. Other leaves look normal, and the shape don't really matter as long as the leaves are healthy, so don't worry too much about it.