Note: Since the poster specifically referenced issues with "Quick Tasks"....

See - https://download.microfocus.com/Down...d=YVdIstyKxF0~

There was an sporadic issue with Quick Tasks specifically when both the Agent and Server were on 17.4.0 due to a minor issue in a new feature that enhanced QT performance.
The 17.4.1 has a server side fix that resolves this w/o an agent upgrade.