in my website https://www.sloveniabenessere.it in some areas like that here below
( here a result of opening oe enlarge a photo https://www.sloveniabenessere.it/images2011/450x301_ss/slovenia-kamnik-eco-resort-velika-03.jpg )
Does it depend from cache ?
How I could fix and have original result?
Could you try (temporarily) disabling rocket loader? The script might be incompatible.
I tried but nothing changed.
Should I purge cache ?
Issue persists even after cache purging