(not that this is the same issue) - they stated during one of those monthly FAQs for 2020, they found a certain group of players had a configuration unlike anything in their test cases and a certain bug slipped through. so, they were able to update their test cases to cover that configuration.
it’s not excusing anyone; just saying, it’s easy to mix-up a “+/-” direction, especially if it’s counter-intuitive or the coder doesn’t understand the scenario. there was once a wind issue where all the windsocks were backwards because they were set to wind reporting instead of wind blowing direction.