My sphere has corners?

Hi there,

Im pretty new to the procedural generation world but i have dealt with 2d stuff before, but im trying out generating a spherical (ideally planetary) and the sphere has corners where the faces join together. I can't seem to figure out why but i know its not lighting, just wondering if anyones encountered this before and if they have any ideas what the issue is?

Its generated with perlin noise but i honestly dont know if the problem is with how im putting the 6 faces together or with the generation of the bumps themselves

https://preview.redd.it/le428nu9c7jh1.png?width=556&format=png&auto=webp&s=1f8c2610786d4efb6c11a771f6d45b505a20909e