Tiled mosaic

Hi,

I like very much Jetpack and I use in a lot of website.

Now I ‘ve found a strange problem with some pictures, some (two) of them don’t visible in the tiles mosaic but if I click on it I see very well.
I don’t understand if it’s a problem of dimension or other.
If I try to refresh more times I see all.

This is the url: https://www.apritiverona.it/negozi/il-sole-doriente-verona/

Can you help me please?

Thanks very much,
Enri

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