select list going away on iphone when clicking the 'x'

select list going away on iphone when clicking the 'x'

I build the select options dynamically.  It seems to display fine on all devices.  However, on an iphone, the first time it renders,  after the user hits 'x' in top left,  i just disappears.  

it seems to work fine in subsequent runs.  I do not see this problem on Chrome or Safari.

Ideas?
Thanks