Trying again, it seems for me at least the issue is mainly on the app.
In the browser it imports the original audio but I find it a bit difficult to watch and read at the same time since the video floats and partially covers the text instead of being separated like in the app. On the browser (mobile Firefox) the left side of the screen also tends to get cut off for some reason which is why I prefer using the app.
Would appreciate it if you could look into autogenerated English audio getting imported in the app as well, thanks!