Called Shot not highlighting head area, %-chance not switchting

When using calledshot on a enemy mech the head area is not highlighted, (can by clicked anyway and shot at). if shooting a knockdowned/leged mech the head is visually clickable. this is more a cosmetic issue but a little irritating. Keep up the good work!

Reproduce the issue with Called Shot against an enemy mech, including a standing mech and a knocked-down or legged mech. Inspect the Called Shot targeting UI and percentage-chance behavior; done means the head area is highlighted consistently and the displayed chance switches correctly.

Written by the indexing model from the issue text.