I have read a lot of posts on this issue, and I have tried the fixes like resetting scripts on rez and using SetText after the call, but it seems the only thing I can do to get it to rotate the child prim after copying is to select one of the linked parts. I do not even have to edit anything, reset or modify any script, just right-click->edit->check edit linked box-> click child part->close edit window ... then the thing starts spinning... but there is no telling if the next call to llTargetOmega will actually stop it either... it seems random.
Is there any other way???