Unsure if this is the same bug or a different bug. AI is signing free agents--almost all relievers--then releasing them about a week later. Just a constant FA churn being created.
I can provide league files if that would help, of course. Here's an example for one team that signed Nelson, Bechtel, and Hamilton for a week.
https://www.dropbox.com/scl/fi/bz0az...6wb3pzmzg&dl=0
and then released them
https://www.dropbox.com/scl/fi/7wwmt...6ircolbsd&dl=0