Double-checked the black and white levels, still can't find any pink cast. White balance on the shoulder.

thats right, when you manually set the correct white ballance there is no pink cast.
- Its a metadata ting in the DNG file. The picture data in the DNG file is fine.
Adobe Lightroom see this:
1, 0 Sec exposure (wrong, think it was 1/60)
f/1,0 (Wrong, was 1,4)
Temp 6050 (wrong)
Tint = +78 (wrong, this is where the pink color is comming from)
Iso and focal lenght are missing.