Recorded herself then never watched them?
So Alex had all the cameras set up to record everything. But then why does she never seem to watch them back?
At first I wondered about this too.
Then I realized that, at first, she did watch the videos of herself.
But as the film progressed, the demon gets stronger & is able to prevent Alex from being able to see them.
Alex is seen trying to access them on her laptop, and cannot.
I'd say this cloud is Cumulo Nimbus.
Didn't he discover America?
Penfold, shush.