I'm using JMWE app's Transition current issue post function and it gives me "An error occurred while executing a Transition Current Issue post-function: Validation error while triggering transition [381@@RQ: Default Workflow]: root cause: Validation error"
This transition doesn't have any validators.
In the follow-up transition there's a Set field value post function. When I turn it off (set condition to false) issue transitions fine. In the Set field value post function I'm populating a Multi user picker field. Value is array list of user keys (string). Do I have to use a different value for this? ApplicationUser or maybe string is fine and I need usernames for this field?