Date column does not group same months / values

[Anonymous]

Dear community, 

the follwoing column does not get grouped by the same values in any visualisation and slicer: 

Other date columns work w/o any issue. 

Do you have a suggestion?

[aj1973 · Accepted solution]

Hi @Anonymous 

That's strange, my guessing is that the column is not well formatted or the slicer is bugging. is it acting same way when you add that column to a slicer in a different page?

Why don't you create and use a Date Table?