Image diff not showing because .gitattributes

Hello.
I want to take advantage of gitlab image diff during merge request. However, instead of the image being rendered or the diff, this is what I’m getting:

This is the .gitattributes file that we have setup, I don’t understand how this is avoiding the image to show properly:

* text=auto

*.* text eol=lf

/.idea/* text eol=crlf

*.png binary
*.jpg binary
*.ico binary
*.pdf binary

We are using managed gitlab.com

Thanks in advance

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