When I edited the Product named
T160 Size and Color custom fields to add size in inches to the existing size parameters (see attached screen shot #1). When I went back to the parent product's Custom Field tab, ALL of the child products size and color values defaulted to size Changed to Small (23-26).

(See attached screen shot #2). How to solve this issue Please any suggestions?
Thanks
Irfan
[attachment cleanup by admin]