Rendering two Loading.tsx

[aeroxee]

I created a route in the app dir, like so:

app/
    blog/
        [id]/
            Loading.tsx
            page.tsx
        Loading.tsx
        page.tsx
layout.tsx
page.tsx
globals.css

I made Loading.tsx on the /blog and Loading.tsx on /blog/[id].

Suppose I want to go to page /blog/2 from the main page /. Why is Loading.tsx on /blog also rendered?

So I saw in the browser that two loads of Loading.tsx were displayed.

Is this a bug in the router app? Is this normal?