POKéMON Colosseum stretches in and out screen randomly.

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Hello there, and thank you for your help beforehand!

These are my specs:
OS: Windows 10 (2004, 19041.388)
- Updated everything up until today, 07/17/2020.
GPU: nVidia 1060 3GB (Windforce)
- Driver version: 451.67
CPU: intel i7-4790 (not k)
RAM: 16GB 2x8 DDR3 1333Mhz
Dolphin: 5.0-12309 (but it was happening a couple of monts ago too, but I stopped using dolphin then, so I just forgot)

And I think that's all what can be relevant.

Okay, now into details:

When I run POKéMON Colosseum (GC6P01, Europe) everything is fine. Window (or even in fullscreen) doesn't stretch and everything looks as expected. But when I go ingame (after loading my save), and I move around any map, the game window (or even in fullscreen), the image stretches in and out depending of where I am moving, or in which direction the character looks at or the position in the map where the character is, I am not sure what is the problem.

Here is a gif of what I am saying:

And this is a link with my configuration (they are pictures):
https://imgur.com/a/0Kl9ZtC

And I think that's all I can say at the moment. Any ideas?

Thank you and have a nice day.