I also have this exact bug. It is upsetting. I invested time and thought into Fane's story and decisions, and then find that the game basically has no ending, b/c of this bug.
Watching a youtube of Fane's divine ending, as I've seen some suggest, also doesn't help, because what I am most missing out on imo is the interaction w/ party members (whose identities/attitudes/etc. are based on my prior choices) on the ship afterwards in the epilogue scene, with the context being that Fane chose divinity. That's not something a youtube clip can help with.
