Sounds weird indeed. So gather more information:
**Edited**
After adding the ‘retrieve user’
and feeding that to the cast:
It works fine.
Have a good day!
so I have a tiny app that reoproduces this behaviour (9.12.1)
https://www.dropbox.com/s/plnpddnlubotzaf/AccountTest.mpk?dl=0
press the button, add your name or what ever, save and reopen the popup, it will be empty.
but if you refresh your browser sometimes it does seem like it has been set.
Pls let me know what im doing wrong :D