I’m still having the same problem on my wife’s Surface Book Pro, but not on my Surface Go. I did find a workaround that delivers the same outcome though.
In windows explorer, right click on your OneDrive folder and select the option to make the folder available offline. If you have the “status” view option enabled in windows explorer, you can verify the files are locally available.
Hope this helps!
What does that option look like? I've right clicked on the OneDrive folder and I don't have any options like that.