This morning on the way to work, FSD was making a left hand turn and it looked as though it was going to cut the corner too close, so I turned away and completed the turn. Immediately after completing the turn, the UI displayed the “Red Hands: Take over immediately” so I did, and then immediately after I saw the message “Autosteer unavailable due to system error”. The FSD UI was still displaying, however it only showed the lane lines and road edges, no other vehicles were displayed and there were clearly many around me that should have been displayed in the UI. It took roughly a minute or so, but as I was slowing down and the next light, the other vehicles surrounding me were once again displayed in the FSD UI. Either way I emailed the FSDBeta team.
EDIT: The car and I were never in any real danger, just another FSD Beta situation that had to be dealt with.