Collisions problem

I have one sprites and one empty object.

Both of them have a collider2d, with trigger on.

They have the same Z, so they are effectively interacting

I call the OnTriggerEvent2D(Collider2D other) method.

The collision is still not detected. I've done everything right (apparently not -.-) but it is still not working.
In particular, the method is NEVER called, even a debug.log won't return anything.

 

So you don't have a dynamic rigidbody2D on either gameobject? That won't work unfortunately.

Here are the valid collisions:

Static with Dynamic
Dynamic with Static, Dynamic Kinematic
Kinematic with Dynamic

So you always need a dynamic rigidbody to detect collisions or triggers. It's different than the 3d physics.

 

I know all of that, i have tried the rigidbody and the kinematic either, i have the colision/trigger table, the problem is not there...

 

Solved, i restarted unity and it is all ok now...i've no words -.-