Stop a Deployment via API

Hi,

I've been working alot with the Ivanti PowerShell API and one of the things I just can't get to work is stopping a deployment using the call Stop-PatchDeploy.

Stop-PatchDeploy -Uid XXXX

It just does nothing. Is there any restrictions on this? i.e can you only stop a deployment if it's in a certain state? I can Cancel the deployment via the GUI at any point?

Hope someone can help.

Thanks,

Max