wiloke

Ok, Please put this link to your menu. I already logged into it before, clicking on Open a ticket and it redirected to here.

I solved it my self.
cmb2 -> includes -> CMB2_Field.php -> line 471

false === $cb

if the callback function is empty, it will return NULL

and because of you’re using false === $cb => return call_user_func( $cb, $meta_value, $this->args(), $this ); will be executed => return null.
Thanks

• This reply was modified 8 years, 4 months ago by wiloke.