I made a job with one print task.
That task should print all pdf's from one folder (ultimately a network folder, but now testing with local folder) to a printer that I added directly (TCP/IP printer) at the server where Visualcron (8.3.5) is running.
When I start the task, it keeps running forever and nothing is printed. Nothing to see in the print queue either.
And stop task is not working either here. So only solution is deleting the whole job.