Missing tiles in render

Hey, I have been doing some rendering for a school project and I have been having some problems with tiles not showing in my renders. It doesn’t happen every time but its happened twice in my last 5 renders.

I am using the optix render device because I have a RTX 3070 GPU. I am rendering with my GPU. I have my sampling set to 2500 and I am using the auto tile size addon.
I would really appreciate the help as my deadline is approaching fast, thanks in advance :slight_smile:

Edit: this image was rendered with a tile size of 256 by 240