This may be the kind of mapping error that I occasionally see. Sometimes it is undeniably a mapping error, in that the chosen route does not actually work to reach the destination. Other times it is like what happens here. Turning at the wrong time.
Many supposed FSD related accidents just don’t seem like FSD errors to me, but this one is exactly the kind of error I experience, and why FSD now has the (supervised) moniker.
Last week FSD tried to take me the wrong way up a Burger King drive through. I was not even going to Burger King. Its first error was taking the wrong entrance to a parking lot, which wasn’t a big deal, just drive a short way in the parking lot instead of on the street. Instead of turning on the row that the correct entrance goes to, it again turned early, this time into the exit of the drive through. I took over before it could complete the turn. It was like the GPS accuracy was off by 100 feet.
Conversely, on Monday FSD successfully drove me 60 miles from the top of Berthoud Pass to the northern suburbs of Denver. That route included a mountain road with tight switch backs, one lane construction zones, a steep and curvy interstate, and rush hour traffic.