Bounty for Octav Firebrand, killed all of the other NPC's in the area but Octav Firebrand was not there or did not spawn.
Have closed game and left area several times but OF does not spawn. Unable to for fill the bounty quest.
Fix for me was to to turn off NVIDIA Reflex Low Latency
All other settings are high, turning off Reflex low latency has completely fixed the UE-Alabama fatal error. No other crashes since.
Hope this helps others.