perhaps related to the original bug: sometimes (if he body is intact?) a mech is shown as whole when it has been destroyed. or alternatively a mech is reported destroyed that isn't (a mech that still has it's body, engine and the like is not supposed to be destroyed, right?).
Edit: also, in that save attached to my first 2 posts, you can find a story arc bug- instead of giving clues as to the location of the hero's nemesis (Viqsi Ulzugi) the questgiver (Usjcam) just gives you a mecha assault rifle (which is awesome, but this deadends the plot)