Leather Armor appears not Colored and Glitches out

When i colored my leather armor white, i asked my friend if he liked the color. He said my leather armor was not dyed so i went to his computer and he could not see the change in color. I then tossed him my armor to see if it would fix the issue and i for some reason his computer showed that i was still wearing non-colored armor, but he had the armor in his hands. The issue did not fix itself until i logged out and logged back in. This was done in a LAN world.