Cant map dashboard filter widget to filed filter

Hi, I have created a field filter in a SQL Query, which works fine as you can see on the picture.

But when I try to map an dashboard filter widget to this field filter, I cant, the field filter doesnt show up in the dropdown box, as you can see on the second pic.

I followed this tutorial: Adding filters to dashboards with SQL questions (

what version are you running and what's the filter type you're selecting?