Audio sources contain no audio files after switching to linux?

So I had a project in windows under 2017.4.2f2

I upgraded it to a linux install of 2017-4.26f1 (and yes I have a backup, so its not critical)

(edit: the project was also originally started in 5.6 if that matters, but I never had any major problems when I upgraded to 2017 last year)

It seemed to work, except there was no sound when I tested the game. I looked at the audio sources and they no longer have links to the audio files anymore.

Anyone else experience this or know if theres a quick fix?

I can always manually go back and add them in, but I don't think I really knew what i was doing when I made them and just added multiple audio sources to one game object, so now looking at them I can't tell which ones were supposed to be what sounds.