Disappearing card and text selection menus when using the mouse in ipad os 16

When I select a card or excerpt from a pdf with a mouse pointer , the card /excerpt selection menus disappear as soon as I move the mouse/pointer, even before selecting my option from the menu. For example if i need to change the color of the card, the menu disappears even before selection. Hence is only possible by using touch on ipad screen. Kindly help.