Apple's iCloud for Windows software appears to be experiencing serious issues for some users, with complaints on the Macrumors forums about corrupted videos and images from strangers.
There are a number of complaints from customers who are having problems with the newer models of the phone. Videos recorded on an Apple device and uploaded to the cloud for Windows are turning black with Scan lines, making them unwatchable.
Users are seeing strange photos and videos that don't belong to them in their libraries when they try to watch corrupted videos. The reader is sleeping ghost.
iCloud for Windows is corrupting videos recorded from an iPhone 14 pro max resulting in black videos with scan lines. On rare occasions, it is inserting stills into videos from unknown sources, possibly other's iCloud accounts. I've been shown photos of other people's families I've never seen in my life, soccer games, and other random photos. Obviously, this is extremely concerning and does not exactly make me feel safe using iCloud.
It is not known if the photos are from other users or not. Users have seen random families, children, and soccer games from the thread.
Deleting the iCloud for Windows app doesn't seem to fix the issue as it may be server side and several people have reported it to Apple. It appears that Windows 11 and Windows 10 are affected, but it may only affect devices with certain settings.