DatePicker inside popup not showing with advanced formatting


I use the Controls\DatePicker (OutSystems UI, version 11) in a popup with some AdvancedFormatJSON: "{firstDay: 1}". It works without this formatting, but as soon as i add it, the DatePicker won't open. When i use the same construction (with formatting) in a normal page, it works without problems. I suspect this is a bug in OutSystems UI... Anyone with the same experience and maybe a solution?

Hi Leen,

Have a look at Eduardo's answer in this post: