card stack as a recycler view item

[ajitha3008]

When I place the card stack as a item in recycler view and keep scrolling, the card stack's shadow effect at the edges keep doubled and tripled and a black border starts appearing. Screenshot attached. please help....

[poojashah23996]

Is it scrolling and dragging card smoothly? because when I put cardstack in a recycler card isn't scrolling smoothly