Lode Runner 3-D vertical stretch

[MusicMantis]

Lode Runner 3-D has its output stretched vertically. As a result, the bottom half of the screen is cut off.
Here is an example of the Nintendo 64 logo that appears when you boot up the game:

I did try a few different things to improve the situation and learned some things:

1. If you disable frame buffer emulation, you can see the logo display correctly (though this breaks many other things).
2. Forcing the aspect ratio to 16:9 improves the situation with less vertical stretch, cutting off less of the screen as a result. A significant portion of the screen is still missing though.

I suspect this could be related to the fact the game has interlaced output. In the past this game has had some motion jitter (shaking up and down) in GLideN64 too. That problem has been long fixed, but I suspect interlaced output may have also been the cause of that.

Thank you for your help!