Hi wjansenw,
I ran into the same issue.
I solved this with the following javascriptcode:
var Logger = Java.type(‘org.slf4j.LoggerFactory’);
var log = Logger.getLogger(‘MyProcess’);var processName = execution.getVariable(“processname”);
var idProcessInstance = execution.getProcessInstanceId();runtimeService.setProcessInstanceName(idProcessInstance, processName);
Hope it helps