LaLaine/"Miranda" still on LIZZIE MCGUIRE show?

I saw she was the now-deceased SIL Chloe on BUFFY, and that she’s been absent from a few LMcG eps as well as the trailer for the LMcG movie- so is she still with the show or not?

and yeah, I’m a 40-yr old male LIZZIE MCGUIRE fan- you may feel creeped out for a minute & then let’s never speak of it again.