Unity The object is in a different layer, but the code says otherwise. How to fix?

Question

Unity

There are several objects on the scene, they have 2 types of layers (layer1, layer2), layer1 has the most objects. All these objects are combined into one object ("mainObject"), which has a Default layer.

But in the mainObject.layer code, not the Default layer, but layer1 will be displayed! Why and how to fix it?
(Unity2d)

Answer 1

The error itself was due to the fact that unity offsets the layers by 1, and the answer is here:
https://gamedev.stackexchange.com/questions/119667...

Answer 2

The problem is in your code.
Look for your object there and after that - request properties.