Mac book pro 2019 glitching on dock when I go to shut down, dock goes about halfway down, glitches, and screen turns off. I spoke with apple about it and the had me try to hard reset my computer, which then sent me into a reboot loop that I couldn't get out of. ended up taking it to apple, they said they replaced the whole mother board. it was fine until a few days after... now its doing the same thing. I'm not tech at all and I'm sorry if this doesn't make sense lol but I am frustrated that not even apple can help me.