Bug: Scanning produces random pages in negative colour
When scanning multiple pages using the document feeder, approximately every 4th page is rendered in negative (white on black as opposed to the correct black on white).
Rescanning the incorrect pages results in the correct black on white. Scanning a single page appears to always work.
Acrobat Pro 2021.007.20099 (Intel) on macOS 11.6; scanning from HP MFP M479fdw.