Cron workflow locked in a state "running" when trigger execute condition is equal to "Execution schedule (defined time intervals)" and workflow task not executed

[nic86]

tested on: https://gitdeveloper.yetiforce.com

• create a trigger (i have tested in the contact module) with condition "Execution schedule (defined time intervals)"
• Execute frequency = Specific date,
• choose the running time twenty minutes later
• skip conditions
• add a random task (i tested update field and add todo)
• wait for the cron is executed

Perhaps the error is connected to the webservices

cache/logs/phpError.log:

[10-May-2016 11:07:01 Europe/Amsterdam] PHP Fatal error: Uncaught exception 'WebServiceException' in /include/Webservices/VtigerWebserviceObject.php:70
Stack trace:
#0 /include/Webservices/Utils.php(475): VtigerWebserviceObject::fromName(Object(PearDatabase), NULL)
#1 /modules/com_vtiger_workflow/tasks/VTUpdateFieldsTask.inc(36): vtws_getModuleHandlerFromName(NULL, Object(Users))
#2 /modules/com_vtiger_workflow/WorkFlowScheduler.php(116): VTUpdateFieldsTask->doTask(Object(VTWorkflowEntity))
#3 /cron/modules/com_vtiger_workflow/com_vtiger_workflow.service(70): WorkFlowScheduler->queueScheduledWorkflowTasks()
#4 /cron/vtigercron.php(74): require_once('/var/www/...')
#5 {main}

thrown in /include/Webservices/VtigerWebserviceObject.php

[nic86]

thanks