Scott Manly has a video on why he thinks the last one failed. It sounds like their landing software didn't have "oh crap, we're way off course, just land wherever". It only had the happy path of "fly to here and land", so when it switched to the landing phase it tried valiently (including flying upside down) to try to fly back to the landing zone, but the landing zone was much further than fuel supplies allowed.
Hopefully they have upgraded software to just gracefully attempt a landing, and hopefully they won't be off course.
Hopefully they have upgraded software to just gracefully attempt a landing, and hopefully they won't be off course.