iOS automation shortcut throws errors but works fine

I had a shortcut that worked fine until recently... it may have been at a system update, but I don't know. I'm running iOS 15.0.2.

I have an automation shortcut that I provided times to trigger at each hour.

This runs a regular shortcut that changes my wallpaper. As I said, it worked fine except for annoying notifications that appear each hour. At least I've told the system to run the shortcut without asking.

The interesting thing is that the shortcut works fine, but still gives me an error from the time automation portion. The "Random Wallpaper" shortcut runs fine both on automation and when initiated directly,

I've attached photos of:

The Error Message

The List of Times

The Time Automation

The Time Action

The Shortcut

Any suggestions gratefully appreciated.