I was following Petra and she was wanting to teach me how to teleport and when she tells me to try it; I just turn invisible and the quest doesn't continue. I tested a few times to make sure, kept soft-locking after I begin to turn invisible. I changed my gender from female to male and the quest acted as normal, just hoping this get some attention to get fixed!

@x_themob1 if you're playing as female, I was, and I was having the same issue, I changed genders by pressing tab while in the menu and then replayed it from an autosave and it worked. Wasn't sure if anyone else was having this problem, but this fixed it, and you can swap genders anytime, worth a try!