My reinstallation of iStopmotion 3 doesn't save preferences!

I reinstalled iStopmotion 3 from the Mac App Store and now every time I open it up, it acts as if I hadn’t opened it up before. All the preferences get set to the default and I have to set a certain keystroke again and again. Anybody know why? How I can fix it?

can you please clarify what you mean with “I have to set a certain keystroke again”?

Please delete ~/Library/Containers/com.boinx.iStopMotion3.Mac/ (~is your home folder) while iStopMotion is closed and re-open it. I suspect iStopMotion does not have the right to modify this location for some permission issue.