If the bots are stuck on a 'look for [x]' section of their script, you should be able to see a red circle.
It only looks for [x] inside that circle, and not in a radius around themselves.
Cheynas,
I can't seem to trigger the red circle that you mention, but it does seem to be that the "fix" is to just dig a few random holes until it likes one of them. So I've just got a few extra holes dug around and that seems to be preventing the issue.
Thank you!