Some entries not visible and some images with wrong size

[sookoll]

For some reason, some entries are not visible and some entries are with wrong sizes. You can see it here: http://sookoll.ee/picu/a/72157658806853453/ Look elements tab in devtools, you see that many entries are not included and some are very wrong dimensions.

$("#set .thumbs").justifiedGallery({
  lastRow: 'center',
  rowHeight: 250,
  maxRowHeight: 500,
  margins: 4
});