so I maxed my cast height for alt and keep getting this error that says height is insufficient...

Fix your buggy game already

Do you have your armored and unarmored forms unsynced? IIRC there's a thing where the unarmored form gets set too low for NA and it won't let you create the character. There should be a toggle somewhere in the options for it. Turn it back on, create the character, turn it off, then edit it separately.

@AiC-L did not know this is a thing. I managed to create my cast granted i had to stretch the head to gain 1 more point in height before it let me make it at the time. I'll look for this option the next time i make another cast