"Hot crack" operations are memory-intensive. If the system RAM has a bad sector or if the Windows page file is fragmented, the dynamic reflow process writes to an invalid address, causing an access violation that Kodak traps as error 900512.
The combination of terms you've provided doesn't appear to refer to a single, established document or technical phenomenon. Instead, they likely originate from three distinct fields: Kodak Preps : This is a widely used imposition software kodak preps 900512 hot crack