Yup, I just saw this too.
Had to replace my DockLayoutPanel with a DockPanel.
Then, whenever I had to nuke the Annotated Timeline (in order to plot an entirely different
dataset) I just removed it from the panel, created a new timeline object, added it back to the panel,
and re-bound my handlers to this new object.
Barely a class 2 pain in the @ss.
David