SUMMARY: In Windows, cell editing doesn’t work unless you return FALSE from CellClick. This is different to 2012 r2.
If you enable cell editing in a listbox by adding this to listbox.CellClick
me.CellType(row, column) = ListBox.TypeEditableTextArea
Be sure you also add
Otherwise under Windows, in Xojo 2031 r1 or above the cell will be emptied before editing effectively deleting the cell’s contents.