Anyone have any experience with resizing dies becoming scratched from resizing cases after they were tumble cleaned in Lyman corncob media?

Recently got a tumble cleaner and cleaned some 45ACP. Then proceeded to resize without wiping off the cases. Noted several surface scratches on the resized cases running along the long axis as well as scratches in the die itself. I checked some cases that were loaded just prior to getting the tumbler and they were scratchless. I can only conclude that the scratches were due to a residue from the tumbling but I could find nothing that indicated that post-tumbler cleaning is required before resizing. The resizing die is steel, not carbide.

Any thoughts as to whether the scratched cases are still serviceable?

Any thoughts on how to remove scratches from die?