Find my approach as reference below and stored in attached workbook version 10.5 located in the original thread.
1. Define parameter P1. Select Month
2. D1. Display:
datediff('month',[Order Date],[P1. Select Month])<=11
and datediff('month',[Order Date],[P1. Select Month])>=0
3. Define custom date D2 Order date (Month/Year)
3. Drag required object to the indicated location and set D1. Display to TRUE
Hope it helps.