Troubled me too and I did a search in files to solve this.
Comment 4 lines contain "Logger.LogSpecial" out in Trinity\Framework\Actors\CachedItem.cs and the these logs never show up again.
Code:
//Logger.LogSpecial(() => $"{Name} is no longer valid or is disposed. (Ann={AnnId} ACDid={AcdId})");
I guess this logging is for testers' goods. Stable releases don't spam users with logging.