Problems with death of the PC and NPCs (Fallout 4)

Friends, faced a problem! In GG got a synth out of a cannon, began to walk and flicker as current, but this is not taken as a supposedly stuck animation hit. After the death (killed friend Kate, throwing a grenade), auto load the latest savegame GG immediately dies, and the animation of the lightning is also observed. Even in previous saves I noticed that after receiving serious damage to companions after the battle do not regenerate, and you just start to get up and come to life, triggered animation as you kill them... what could be wrong? New fashion set, the console isn't used...