I had a few glitches here and there, first game changer was Cait not being able to follow me along the red line on the boston trial, could live with that. NOW I am trying to kill Kellogg, it is impossible and I can't move forward in the game due to the fact that near the end of the level I started to turn invisible when crouching AND opening my pipboy would give me a glitched out blurry 'power armour pip boy' veiw and I am not wearing any. When I got to Kellogg he is becoming invisible too.. I think when he crouches , but I can't see to tell.. this means it is literally impossible to kill him or move on.. WHAT AM I SUPPOSED TO DO? I can't go back as my save points don't go far enough and it still wouldn't fix the problem if I could. HEEEEEELLLLLLPPPPPPPPP MEEEEEEEEEEEEEEEE

UPDATE: I managed to kill Kellogg and now the glitch is permenant , I am invisible every time I crouch and all the colours of the game get weird and bright.. it ceases to happen when I am wearing power armour. Any suggestions as to what I am supposed to do? PLEASE

Same exact problem with the invisible and weird light effect.

Did you guys happen to pick up the chameleon armor? Don't know if it effects night vision as well but nightvision is in the game so maybe you're wearing something that gives you night vision.

At any rate, take off all your gear and see if the effects persist.

Well done, looks like you might be right, just saw it on youtube.. will check it out. I ended up starting the game again but I uploaded a save to the cloud. Hope it works

Thank you this makes sense