I saw that there are a few issues about images saved on an operating system not working when opened on other operating systems:

-��https://pharo.fogbugz.com/f/cases/19852/Unable-to-open-image-in-OSX-after-it-has-been-updated-in-Windows

-��https://pharo.fogbugz.com/f/cases/19869/Infinite-loop-on-mac-when-opening-an-image-saved-on-windows

-��https://pharo.fogbugz.com/f/cases/19272/Image-freezes-on-Linux-if-it-was-previously-saved-on-Windows

-��http://forum.world.st/Image-freezes-on-Linux-if-it-was-previously-saved-on-Windows-td4903258.html