My vault in iCloud Drive has three subfolders, with a few files of various formats at the root level. The root, one subfolder with images, and one subfolder with images and one video, all work fine.
The remaining subfolder, which has only videos in the dozens to hundreds of megabytes, shows “Content Unavailable” no matter what I do. Force quitting apps, restarting the whole device, manually downloading the entire encrypted contents of the vault in Files > iCloud Drive, all do nothing.
Discourse will not yet permit me to attach logs. Can anyone tell me anything without them?