Autopilot is not using fast drive if an unknown object is a gate - that is a common thing. In this particular case autopilot is not even starting - Unknown Object is Inactive Gate.
Savefile:
https://www.dropbox.com/s/ddwdpewr2zbu8 ... ml.gz?dl=0
Edit 1: Fast drive is not used also if the unknown object is an accelerator
Savefile:
https://www.dropbox.com/s/yq3o4e8oubw8u ... ml.gz?dl=0
[4.0 HF3] Autopilot and Unknown Objects - Fix in a future build.
Moderator: Moderators for English X Forum
Re: [4.0 HF3] Autopilot and Unknown Objects
@Egosoft - any comment, please?
Re: [4.0 HF3] Autopilot and Unknown Objects
This will be fixed in an upcoming update.