Trigger problem on devices

I have the following problem. If i put an object with collider and animation, and dont use a rigid body, when i use OnTriggerStay2D the trigger registers without even the player touch the trigger. If i put a rigidbody2D the object does not appear at all. or trigers other trigger objects on the level depend if i have kinematik on or off. The game works fine at the editor, the problems appear when i build them for ios and android Devices. I have Checked everything, object is with 2D Collider, is trigger is enable, i use trigger 2d code, and the rigidbody is for 2d.