>In the init event I declare a memory variable public and give it a value.

All variables RESTOREd are restored as PRIVATE variables, thats why the variable may be going out of scope.

Try RESTOREing to a temporary variable name and then setting it to the PUBLIC csr.

BTW, a better way to do this may be to save the RESTOREd variable as a property either in an application object or the toolbar, then you can aviod using PUBLIC variables.