Repetition in YearMonth filter values in Qliksense

[SoillBIQlikSense]

Hi I am getting repetition on yearmonth values in the filter. the data comes from 2 joined tables.I expect to get one Yearmonth value but I get multiple values when there is more than one invoice in the same month. See below.

Thanks

[dplr-rn]

that looks odd.

Can you share a screenshot of your actual dashboard (filter)

also a dump of the data in the invoiceyear column too

[SoillBIQlikSense]

www.soill.co.za
www.bwellfoods.co.za