Imported Image Shows up as Black Rectangle

I’ve updated Toon Boom Harmony Essentials recently and for some reason I keep encountering this issue. Each time I try to import an image or video, it shows up as a black rectangle/square. I’ve tried turning on the vectorization on the image, and the result is the same. I’ve also uninstalled and reinstalled Toon Boom and restarted my computer and this issue kept happening.

I’ve been able to import both bitmap and vectorized images in the past. Does anyone know what I should do to fix this issue?