Disappearing July 2019 data in Numbers.
All my July 2019 data disappears when i turn on categories in numbers. I am organising by month to do a count. I tried adding a row and type in 1/8/19 which shows fine, I then added another row and type 1/7/19 and it disappears. I turn off and on Categories and still gone. I tried pasting the july data in, one column over, and it stays, and is categorised as blank from the empty column. But WHat the heck! I'm lucky I noticed this.