parseInteger(formatDateTime($NewWeek/StartDate, ww)) with startdate 25th of december results in an non existing weeknumber.
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When i use parseInteger(formatDateTime($NewWeek/StartDate, 'ww')) with the start date of 25th of december 2017 i get '53' as a return value. But week 53 does not exist in 2017. Does anyone know what could be the issue here? It's not localize on the date time.