Hello,
1) You are using cache plugin. Did you try to clear the cache to apply changes? https://prnt.sc/tae1dj Because I don’t see problems after that.
2) Masonry option should be disabled http://prntscr.com/tae8it because it makes completely different things to what you asked. Check now.
3) Block width is wider than the image you have there http://prntscr.com/taebap Use bigger images if you want to reduce the space between columns.
Regards
