Movies listed in my library in AppleTV app on Mac OS do not appear in the Library list of movies on my TV through through an Apple TV device

All the movies that I bought show up in the Movies library on my Apple Mac with latest OS.

Problem 1: In the iMac app, some of the movies do not have artwork. The movies without artwork seem to have all the functionality except the artwork - I can play them on my computer.

Problem 2: The movies without artwork on my computer don't appear in the Movies library on my TV (connected via Apple TV device). All the other movies with artwork in my computer library are listed.

Solved Problem 1: It appears as if movies with artwork in "portrait" format do not have artwork displayed as opposed to the landscape format of the movie icons. Removing these movies from the library (not deleting the files, only removing from library) and re-importing them fixed the problem. It takes a while for the artwork to update after the import and some did not update after a long time and when I then removed the movie from the library again (not deleting the file) the artwork appeared within seconds without removing it from the library - bizarre but it worked)

Unsolved Problem 2: Solving problem 1 above did not solve the problem of seeing the movies in my movie library on my TV via Apple TV device even though the problems seemed to be related. I would like to have help with this.