Images in catalog from 2015 turning black-out

Editing old stock. Not making any changes yet, just opening up and looking at the raw files. Images in updated Lightroom classic catalog are from nearly ten years ago. My dodge burn and other adjustments jump to pure black, export as pure black or if it's a gradient mask that part is strangely totally blacked out. No adjustment changes this. 
At first the image is visible in my library but anything I touch and open goes to black. Very alarming