The logical error is in the last -1 in every part of the calcs.
You literally jump to the February 28th, 2018 (2018-02-28),
then jump back 13 / 25 months from there --
straight to the January 28th.
The 'right' part of the calcs would be like this:
... [Calendar Daily DT] < DATEADD('month',-13,DATETRUNC('month',DATEADD('month',1,TODAY())))
Please find the attached illustrating the difference.
Hope it helps.
Date_Filter_v10.2_YF.twbx 1.2 MB
Thanks for ur help.
The above formula worked!