The fact that it should have an IRL week long duration and that it doesn't get removed everytime seems like it is a bug that had not been reported, but searching again now it's bringing up many results, so I don't know what happened when I did search (I ensured I was searching the forum as a whole and not any sub-section, it was spelt correctly and I tried several times) but I found this from EO a few years ago:
So it seems like it
should be persisting and did a single time for me (Only had 2 tests, so it's a 50/50 in my experience so far)
We'll hear whether or not this is true once the devs look into it.
As for the quick fix of munching on a weak bandit, that works well enough, but for a feat where if found in the act SHOULD have dire consequences, it's not ideal to have to take this risk daily.