EventBridge API Destination Connection Issue

I have an EventBridge API Destination Connection running and in use for several weeks (used in EventBridge Pipes). It uses an API Key for authorization. A few days ago I noticed that it said deauthorized. The API key was still good as expected. I was able to reauthorize the api connection using the same key (copy and paste) by simply resaving the key. I'm at a loss as to why it would seemingly randomly deauthorize. There were no issues that I could find with the api in question. I thought maybe the api went down and that caused the deauthorization so I tested it in a lower env by taking the api down, but that didn't impact the authorization at all (which is what I would expect, but wanted to rule out any funny business).

Has anyone else run into this before?