Trinity's fault probably. You could check the actorID of the catapult and check if Trinity has them in their destructibles (if it can be destructed ofc).
When you find your bot stuck, stop the bot, go to the second tab (the info dumping one) and hit "Dump ractors" button. You will find your log with lots of info of the objects or things near your position. Scroll the list until you find the catapult and it should have an id (actorid). With that, check if its included in Trinity's destructibles list.