The figurine making company is having problems meeting the deadline because of a joint issue with Noctis arms. Apparently the final model while holding weapons the arms were easily snapping off. Something about the scalers for the 3D printing being off at his articulation points for the forearm.
No reason to just take my word for it
https://store.na.square-enix.com/product/402473/final-fantasy-xv-play-arts-kai-noctis
Noctis is only figurine whose expected delivery date was changed and pushed back to November. (Oct 31+2 weeks processing sneaky how they worded that huh)
If you look at the promotional figurine picture you can also see where they made the firearm connecting point to large, which led to the future mass produced models being faulty.
My source is legit, as I am a collector and he has hooked me up several times in past way before they are released.