First few frames of render are a black screen.

[silk verge]

The images are loaded from a url, so i'm assuming it could have something to do with that, but using preloadImage or preload don't seem to have much of an effect on it.

[steady skiff]

https://www.remotion.dev/docs/delay-render#:~:text=This method is useful if,are now ready to render.

[ancient sail]

you are using the Img component from remotion ?