Boxcollider 2D blocks world space canvas

Hi guys,
i have a problem which it seems i'am unable to solve.

• I'am developing a 2.5D point and click game. Point and click works with Box Collider 2D-s on the clickable surface, then ITween from Playmaker.
• I want to display a context menu with a world space canvas above it.

The problem is, that i cant click on the context menu. The collider picks up the raycast, and the character starts to move. On the other hand, if i turn of the collider, everything works fine.