I’m trying to create a slice that filters a DUEDATE (date) minus than today but having also some data with no DUEDATE i don’t want to show this kind of empty data
I think Date fields automatically get an initial value of now(). Could it be that your dates all have values? If so, remove the initial value and see what you get when expecting a blank value before adjusting your formula. I suspect that even without the initial value, the field will fill with zeros. Is so, you could use something like left([DueDate],4) = “0000” or whatever matches the “blank” date in your AND statement.
I dunno what your problem is, I’m sorry to say. I just tried a bunch of things and I cannot replicate your problem. The isblank() approach worked fine for me.