Show Editor Mixer - often have to toggle checkbox when opening Ardour

Often when I open Ardour, and this used to happen on my Mac and now also on my PC, the Editor Mixer is not showing on the left side.

If I go to VIEW menu, the check box is enabled on “Show Editor Mixer”. However, I have to uncheck it, then re-check it to get it to show up.

bugs need to be filed at … reports here will generally be forgotten/ignored.