character creator skins wont change to slim arms

this is my first bug report. and this bug in particular has been annoying me since i cannot change my skins arm type.

when customizing a character creator skin. in the size section. im not able to change my skins arms to slim.

as pictured in the video i am pressing ok to select slim arms multiple times. and it never works.

characters i made before the bug that previously had slim arms still keep there slim arms. im just not able to create new custom character skins with arms.

heres how to reproduce the bug. im not sure if its just me or other people are experiencing it too.

step 1: go to the dressing room.

step 2: go to a character with wide arms or make a new character. ( character creator skins only. not classic skins. )

step 3: go to size in the body section

step 4: change arm size to slim and press ok