Steps to reproduce:

• Visit your Sandstorm app page or "demo.sandstorm.io"
• Click on the Wekan icon to see your list of Wekan grains
• Click "Create new grain"
• Before the grain loads completely, navigate to any other page (e.g. Apps) or grain
• Wait a few seconds (to give the grain time to load)
• Navigate back to that grain and see funny UI (elements fall out of the iframe view)