What is the problem with c isotope in Safari?

Question

JavaScript

Task:
1. Make all posts of the same height, according to the highest post.
2. Sort posts using Isotope
Example without pictures
Example with pictures
Everything works fine in chrome and firefox, but in safari it's buggy and I don't understand why. How can I fix this if I wrote it wrong?
How it should be and how it works in chrome and firefox:

Bug in safari:

Answer 1

As it turned out the problem was in CSS transition

Answer 2

Maybe the point is that the plugin is initialized faster than the images are loaded .
Try downloading the imagesloaded plugin and initialize isotope on the done event .