Last Saturday I was able to start off my journey to Boron space. I got the notification by ALI about the expedition and joined them shortly after.
The initial cutscene played perfectly well and all of us travelled through the gate. Then, nothing. Apart from some Teladi leaving because the sector seemed empty all ships just stood there and did nothing.
I decided to head off on my own and triggered another cutscene involving two BOR transports that were happy that resource shortages might finally be over. I then entered actual BOR space and got a mission to supply the build of a new shipyard.
Now, the shipyard mission is completed and the wayfinder still sits at the initial gate, doing nothing. No new mission triggered from that.
Version 6.0 HF1, English, unmodified
Game start: The Young Gun (hundreds of hours in)
Here is a link to two saves: https://www.dropbox.com/sh/qn4pvwjekb9p ... Cht4a?dl=0
after-shipyard-done -> A save sitting next to the wayfinder with completed shipyard quest an nothing else to do (Boron-wise

pre-plot-start -> A save just before the Boron plot starts, just shy of 60km in front of the gate where the first cutscene starts; this is just an old save (lacking roughly 24h hours of playtime to the real save) that I can reproduce the issue in
Kind regards
Nero
EDIT: Added saves and updated post with latest information I have, updated thread title to be more accurate.
EDIT 2: this seems to describe the same issue viewtopic.php?f=180&t=453836
EDIT 3: Solution in second post (at the bottom) --> User error
