Task Scheduler for running robots

We have 6 robots till now in our organisation. We are tryig to convince our management to buy an orchestrator.
Meanwhile, We have 4 robots running in azure cloud and 2 on premise. The 4 Robots(unattended) in azure clouds are still running with schedules being done on Windows Task Scheduler. (robot version 2019.10)

We recently purchased two robots and deployed in 2 on premise VMs(robot version 2019.10). These unattended robots we were not able to run by Windows tasks scheduler. Usually, when schedule starts the system automatically logs out for the run to start. Here it did not log out and the process started running. Is there anything different with new licenses? or are we doing anything different here?