After the latest update i have been getting a very weird glitch regarding the Super Mutants. Some of the enemy mutants are not fully spawned in an area although they appear so on the compass, showing as red, you can also hear their dialogue. but when you finally find them, their actual bodies are lying down on the ground and static, though again appear as alive ( if you have the tesla mod on power armour, they get shocked when you stand next to them and lose health. When you shoot them dead (like shooting fish in a barrel easy) the body either disappears into the floor in a mad flurry of limb flailing or they become rigid and stand upright in a static pose. You cannot interact with the body nor loot it. This glitch applies to super mutant hounds as well. The only time i seem to be able to loot a body is if i cause it to turn to ash with a laser rifle.
this also only seems to apply in set areas where mutants hold ground, like the Meford hospital or Faneuil Hall not the random occurring event mutants who appear .