iTunes Movie Download Experience Not the Same on All Computers

I just bought a movie recently from the iTunes Store. The main computer I use for movies uses HighSierra and iTunes 12.8.2. I can download the movie fine, but when I want to watch, iTunes asks me repeatedly to authenticate to the iTunes account. I comply and soon find my self in a repeat loop. Authenticating to the iTunes Account is successful but I am unable to watch the new movie. I have unauthorized my Mac then reauthorized it. It is authorized and I have only one iTunes account. I've also logged out and logged back into my Mac. I can delete the downloaded movie and watch the streamed version only on this Mac. I can watch the same movie on my iPad.

I have a M1 Mac Mini on Ventura 13.3.1. I downloaded the movie there and can watch the download OK from the TV app (v1.3.4.56). I've also tested it on a Windows 10 PC. Downloaded the same movie from my Library. The PC uses iTunes 12.12.8.2. I can watch the new downloaded movie in iTunes Windows.

What's the deal with my first Mac? Why is it unable to play without iTunes bugging me about authorization?

I bought XXX (Vin Diesel, 2002) the same day and it played fine without a hassle on the first Mac.

What has changed at the iTunes Store?