I had login to take a look.
Can’t find what’s causing this issue.
I used my test site portfolio setting as a reference, and I am still unable to get it working.
There is no javacript error in browser error console. Therefore no clue as to why the script is positioning all portfolio items with left 0. The calculation is “broken”.
May I know if you had modified the theme?
If not, can you try re-installing Evolve plus theme?
Can you try disabling all plugins except theme4press core and reduxframework plugin? and check if your portfolio page works properly?