From a tester:
found a new exception
the automation fails if you attempt to delete a retweet from an accoun that has now blocked you
it gets stuck, it stops proceeding
(redacted)
If it hits one of these, the automation halts
and unless you actually can scroll back to that tweet in the web client, and manually unretweet it, you cant move forward with any other automations, it gets stuck there permanently
I think you need like "Ignore posts from these accounts" list
From a tester: