It is not possible to generate forms for MI User task

import file to business central https://github.com/kiegroup/jbpm/blob/master/jbpm-bpmn2/src/test/resources/BPMN2-MultiInstanceProcessWithOutputOnTask.bpmn2 open it in old designer and change Process Variables from Collection to List, try to generate forms update actor for user task to you and deploy process Start process instance, and clam any task Actual Result: At point 2 (form generation) you will see an error. At point 4 (clam any task) you wan't see any input/output data for the task. Expected Result: At point 2 form will be generated. At point 4 you will see input data and will be able to edit output data.