WriteBack to Cube from PivotGrid

[Michael_R]

I have tested the writeback function and found that the changes are
written (update cube statement issued), but that they are not
persistet in the cube.
Apparently an update statement requires to be contained between a
begin transaction and commit transaction or rollback transaction in
order to really be visible outside the current session.

I have patched the update method, but it seems more of a workaround to
me than a real solution.
Can anyone contribute on this topic?

Regards,
Michael