Fields are not working in the live plotting

[mhaboali]

When I use this line to plot only the x and y values, I get x,y, and z values plotted
jr.live_plot("/my/posetopic:x:y", geometry_msgs.Pose)

It works as expected if I use
!rqt_plot /my/posetopic/x /posetopic/y

Thanks!
Mohamed