Okay, the Disc 1 contents minus /Stream have been uploaded to the FTP.
I did some more testing which may help, see below. It appears the original BDMV folder copy (made with DVDFab) does work, but not in Fab Player. Also, the original disc does not work in Fab player either.
DVD Fab Player 6: Original Disc 1 - Same issue as playing from BDMV folder. Loads FBI warning, Netflix logo, goes to BLU RAY menu, says DISC 2 instead of DISC 1. No matter what episode is selected, it says INSERT DISC 1
PowerDVD 20: Original Disc 1 - Loads FBI warning, Netflix logo THEN a pair of trailers, for Stranger Things 2 and Marvel's Defenders. These are not skippable. Option to go to top menu is greyed out. When trailers finish, BLU RAY menu loads, says DISC 1. Disc plays fine.
Now here's where it gets fun.
DVD Fab Player 6: BDMV 50 Copy Disc 1 - Loads FBI warning, Netflix logo, goes to Blu Ray Menu, Says DISC 2 instead of DISC 1, as with the original.
PowerDVD 20: BDMV 50 Copy Disc 1 - Loads FBI warning, Netflix logo THEN the trailers again, only they are now skippable. When trailers finish, BLU RAY menu loads, says Disc 1, disc plays fine.
So, it would appear the original rip is fine, and this has something to do with DVD Fab skipping the forced content (trailers) Netflix so wisely included. As an aside, this is a stupid decision by Netflix since the trailer for season two spoils season one!
I'm guessing menu structure for both discs is included and after bypassing the trailers, Fab is landing on the Disc 2 menu scheme instead of Disc 1. But those trailers are still there in the copy, and the BDMV copy does work in Power DVD.
If you would still like me to try a new rip with the latest DVDFab Blu Ray copy I can, but it seems like it may not be necessary.