Question World Space and Overlay Canvas

In my 3d mobile game, i have made a world space canvas where i stored the interaction buttons on top of each item which can be picked, the canvas always faces the player camera and only appears when u go near the item, so u can click the button to pick the item. But in my main canvas, i have an ui image which takes up 75% of canvas (its just the way i implemented the look around). This ui image does not let me interact with the buttons in the world space canvas. At first i couldnt find out why i was unable to press the buttons in the world space canvas, but i just happened to press the button thorugh the 25% of the main canvas which dint have any ui image covered, and it clicked. Thats when i found out that this image was blocking my interaction with the button in the world space canvas. Im still new to unity...