I am getting the following error when I try to select the pre-filters on the kanban rules form:
This started when we updated our product version to 10.0.39
Re-pro steps:
1) open kanban rules: Production Control -> Periodic Tasks -> Kanban quantity calculation -> Kanban rules
2) Select the 'Production flow' filter drop down and choose a production flow:
3) or select the 'Last activity name' filter drop down and choose an activity.