Loading Screen doesn't work (Windows Krom Build)

Added a bunch of objects (~3000 monkey heads) to trigger the loading screen, built with Windows Krom, but only got a black screen when loading the assets, no loading bar shown up.
(blend file is large so I didn't attach it)

No source file, test, or entry point is named. Start by reproducing the Windows Krom build with a large Blender scene and inspect the loading-screen behavior; done means the assets load without a black screen and the loading bar is visible.

Written by the indexing model from the issue text.