Yes. Meters are "hidden" by setting their W and H to zero. Thus they in effect become a singularity, having a "position" (X/Y) in space, but no "size" (W/H).
This is why, when you are considering "hiding" meters based on some event, it is worth considering the effect this will have on your design. It might be better to consider hiding meters by setting their color(s) to use a transparent alpha component. This will make them invisible without altering the size. You might also consider making the meter(s) that follow not use "R" on the X or Y, but hard-coding those values or using "r" instead. There is no right or wrong, different approaches work best for different circumstances.