Some downloaded photos lose original date

[DBarbosa15987]

When an image is downloaded, it is treated as a LocalAsset (with a remote backup). When it has insufficient metadata (DateTimeOriginal) the app defaults to showing the ModifiedDate (set by the OS) which corresponds to the date the file was downloaded. In the server, there is the "correct" date, but it cannot be "injected" into the image because it would change its checksum, that is used to identify images across devices.
The download still works, but it will display an "incorrect" date, if the image is deleted locally it will again show the "correct" date.