Thank you for your answer, I didint have that folder with my project. Unfortunately, when I copy it there, nothing changes. Anyway not sure if its the right one I used first the one in .../qt/plugins/imageformats and than I tried .../bin/imageformats . Unfortunately its still the same.
One more thing, I forgot to say how Im saving picture, so I use QPixmap mehtode save. I save it as
save(cesta,"JPG",100)
and I tested now what it is returning and its all time returning 0 so its not able to save. I checked many times if path Im saving it to is correct and it is. Also its working in debug, so it should be anyway.
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