Re: stuck at Kyyyalstaad Basin with no way back
If you are on PC you can try restoring a previous save by doing the following...
I had to recover an old save file. Using Piriform Recova I scanned my saves directory (C:\Users\Username\Saved Games\Respawn\JediFallenOrder) and found a Backup00.sav file and a SaveGame00.sav file that could be recovered, so I restored them to a different directory. I renamed the current ones and copied the Backup00.sav and SaveGame00.sav files that I recovered, and relaunched the game. The game warned me that my save file was corrupted, but that there was a backup to restore from, so I had it restore, and all is working fine again.
Hope this helps.