I have personally experienced that metadata getting messed up - one day I found myself with a very vivid memory of having recently, in real life, an anxiety attack while crossing a pedestrian suspension bridge across a river near my home. But there is no such bridge, and I could also not tell when exactly this had happened. The only explanation I have is that this was a dream that my brain somehow misfiled as a real experience.
In constrast, I otherwise never remember my dreams unless I wake in the middle of one, and even then they completely fade from my memory within minutes.
It is weird how in dreams everything changes, you are in your house but the house is from a movie you watched that day. And a distant family members lives with you in this house or something. And it all fits and seems incredibly normal. I always think of dreaming as brain defragmenting itself and your conscious picking up on it, trying to make sense of it.
In constrast, I otherwise never remember my dreams unless I wake in the middle of one, and even then they completely fade from my memory within minutes.