I might need clarification for the meaning of the term polyploid in this particular case. I am not well experienced in this terminology, but polyploids would be plants that inherit more chromosomes than they should have. I tried looking for examples in cannabis structure, one person with a plant with 4 growth tips coming out of a node claimed it was polyploid:
https://forum.grasscity.com/attachments/image-jpg.1343605/
From what I can see from your photos, some of the branches took on an alternating growth structure? Like what happens in clones, but in this case grown from seed? and some single leaf/branch growth nodes? Or am I missing the mutation? Please let me know if I'm being an idiot here lol. If thats what you are referring to, I would say it's a random mutation/genetic anomaly. I always love unique mutations, it will be interesting to grow it out!