Copy and paste styles from a page to another

Hello guys, i seem to be with some problem or not i don’t know yet.

that is when i try to copy and paste an style from one of my apps to another one, it simply does not let me do it, and opens an pop-up saying : Oops, we ran into a temporary error updating your app. Please reload the page and try again…

does anyone know how to fix it? or its not implemented on bubbles yet?