My enemy falls through floor using Rigidbody2D n Collider with checked "Is Trigger" at the same time

I googled it a lot but i was unable to find a solution to this.

i have an enemy and i attached Rigidbody2D to it to have gravity, it patrols an area and has to go up and down slopes, that's why the rigidbody2d is attached, to use gravity.

At the same time a want to use with it a CircleCollider2D as a trigger, to have combat.

I need my player to pass through this enemy.

But at the moment i set the collider as a trigger my enemy falls through the floor.

The floor also has a composite collider on it and a rigidbody2d.

There is any way to work around this?

ps: i'm using c# if i need any coding.

 

Is trigger in general ignores collisions.
You may need different solution, or secondary collider.

 

Second collider is the way to go here.

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