Glass Panels have a line between them

as u can see in the older version (1.15-1.14) the glass panels have nothing between them and shows a really good picture behind the glass panels but in the 1.16 the glass panels have a really horrible line that makes it look like a shower or something

 

last time I created an issue, on of the admins said they dont get the point. wth I swear if u say I dont get it then ur really not supposed to be an admin