Something wrong that isn't right.

[Krikor]

Hello everyone!

Why doesn't the image I downloaded from pngwing.com appear when I open it in GIMP? 

I can see the preview of the image in the Windows file manager;
   

I can open it without problems in Paint and Inkscape but in GIMP it only shows a semi-transparent image. (See image below).
   

I'm not worried about using this image exclusively, since I'm just experimenting to achieve a certain effect.
In fact, I used the image opened in Inkscape and saved it as .png and that way it opened without problems in GIMP. 

The question here is why the image is not being displayed correctly with GIMP!? 

Thanks in advance.

The image is License - Non-commercial use, so I left it attached for anyone who wants to check it.