Exception when adding a graphic layer second time

Discussion created by mggl on May 3, 2012
I added a graphic layer on mapView, then removed it from the mapView but i keep a reference to that GraphicLayer. When I want to add it back, the following exception is thrown.

E/GLMapCore(5827): GraphicBuffer::deleteSequence ERROR, Seq Num = 0 is out of range.

I could not understand the problem.