The stack number seems to be flickering. It goes from white to black or blue then back to white and so on (it can vary)It doesn't matter what item or stack number it is or where it is placed in your inventory. I have video attached so you can see what it is like.
MC-12786
Stack number flickering
Resolved
Duplicate
0
Duplicate of MC-11033, please use the search function to see if your bug has already been submitted. Currently over 54% of tickets are being closed as duplicate.