Collision doesn't happen when an instance is created above another one?

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:bust_in_silhouette: Asked By soulldev

I have a problem with collision, in my game, there’s a fire that instantiated at random times and if it collided with an object, the object changes it form.
The collision works fine, but just in one case…when the instance is created in the same location as the object nothing happens, is there anyway to make the collision happen with no problems ?