Hi,
I was working with Fuel to save and load a Roassal view (serialize
and materialize), and everything works perfect (so far) except for
one thing: if I have an Anouncer which its registry has an
announcementSubscription with a nil subscriber, it does not work is
gives me this error:

Standard Roassal interactions are OK, but if I do:
aRoElement on: ROMouseClick do: [something] in a Wokspace
materialization does not work. If I execute the same code in a
method send as message to an object I have not this error and
materialization works perfectly. This means I can not save some
visualizations created in the Workspace.
Have anyone experience something like this?
Thanks,
Vanessa.