Alembic import crashing

I have a crashing issue when importing an alembic ABC file from Cinema4D into UE5. I was previously having no issues with this workflow but since yesterday. The only difference in my output was more verts, so I reduced them back down but the error persists.
I’ve linked a video with my settings. the ABC comes to 208mb but I’ve previously used up to 700mb files in this project with more verts. Does anyone know why this would be happening?