[constexpr]

That's the only image with a non-zero EXIF orientation. Which probably means you're using an older browser (e.g. Chrome started respecting EXIF orientation in version 81+, which I think came out 3 years ago?). You'd have to update your browser for it to display correctly.

[bajsejohannes]

Yep. Here's a good description of the issue, with examples that will show if the browser is the problem: https://magnushoff.com/articles/jpeg-orientation/