It doesn't happen a lot, but sometimes I catch the bot destroying Urns or Gold Pots even though they are checked under the "GlobalChestsToIgnore" setting.
Please see this reply. It's basic anti-stuck detection built into the default code to help prevent some stuck issues that were far too common in the past since people didn't want to open breakable chests. You can disable it if you want, but you'll need to make sure your bot doesn't get stuck from "blocking chest clusters".
