Thanks for your quick reply,

here is the URL: http://alexandrabatina.com/Compositing

It happens on a 2256×1504 Surface screen.

Hi,

I tried, and it works, but it disables the smooth/nice animation when resizing the window.
In place, the images from the grid go weirdly to bottom/right when resizing.
It’s not that serious, so for the time being I put this, in order to apply your code only on retina screens:

@media 
(-webkit-min-device-pixel-ratio: 1.25), 
(min-resolution: 120dpi){ 
    .ux-portfolio-4col .grid-list { height: auto!important; display: flex;
flex-wrap: wrap;}
.ux-portfolio-4col .grid-list .grid-item  { position:
relative!important; left: 0!important; top: 0!important;}
}

Thanks for your reply

I made the change only for retina because I’ve not this bug on normal screens, even on a dual screen (more than 3400 pixels of width).

With your patch, which makes thankfully the 4 columns working on a retina screen (anyway for Microsoft Surface), it makes strange movements on the images from the grid when resizing manually the window. But the important thing is that the 4 columns layout is now working.

However, there is no problem when choosing a 3 or 5 columns layout.

Best