Symptoms
Difference in runtime and designer URL
Diagnoses
Upon a created form with a picker. In the rule, "when the picker is resolving" you have configured the picker with an inputmapping and a filter.
After opening the form in the K2 designer and checked in the form and then further checked it out, the designer URL works as expected, but the runtime URL is still not working properly.
Resolution
Best way to resolve this issue is by restarting the K2 Blackpearl service twice.