Last year ago, someone replied to my previous post: Cannot import files from previous titles - #21 by Wak101 and said this:
"Work Around Found! Requires GamePass and ability to stream FH4 on another device
At the moment I have found on Game Pass, if you open a stream into Forza Horizon 4 on another device rather than on my Xbox One, then when I go to import my Vinyl Groups from previous titles they all appear. So I went through on Streaming and imported all the Vinyls I thought I might want and saved them in FH4. Closed the streaming and opened up on Xbox One and they’re all there saved in FH4 to use."
I installed FH4 on my PC to try this method, but no luck. Does anyone know what this person is talking about? I need to find out how to properly import vinyl groups, designs, tunes etc despite this unfixed bug being present.