Array Index Out of Bounds error when loading Perf (672 Build)

[sneakernets]

This is the NuXT computer that I have used for the majority of my 16-bit build tests. Running the 16-bit build from commit c4f24b3

I need to whittle down whether I was using XMS memory or LIM EMS at the time of the crash. I'll check when I get home and update this ticket.