Invisible Commander List

[LumenPlacidum]

Hi. Sometimes when I go into an army setup screen or to recruit troops and come back, the list of commanders on the left side of the screen just disappears. I can't find any way of getting it back other than to completely restart the program. I can still cycle through commanders without orders with the 'n' key, but otherwise I cannot select any commanders and cannot issue orders. It's really very problematic.

Anyone seen this before?