Edited for formatting: (stupid tables)
I did some testing and here are my results. I did with new key-bindings on the commands and I got the same results. The most interesting is Hold Case 2 vs. Charge Case 2.
Default Key-Binding, No unit selected, Listed by command
Hold
CASE 1: No units selected, hit hold, interface breaks
CASE 2: Select a unit, issue a move command, unselect unit, hit hold, interface breaks
ChargeCASE 1: No units selected, hit charge, interface breaks.
CASE 2: Select a unit, issue a move command, then unselect unit, hit charge interface is normal.
CASE 3: After reset battle, no units selected, hit charge interface breaks
Ammo Selection
Normal, nothing happens
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Another interface bug:
It seems like binding anything to the numbers on top of the keyboard DOES NOT WORK, but it does show Alpha1 on the bind menu. Also, the keypad does not register at all on the bind menu when trying to bind keys.